June 8th Announcement
June 1, 2020 thru June 5, 2020
This is our last week of new material for Chemistry. Once you are done with these last two assignments, you are done for the year! It has been great working with all of you this year, even if a big chunk of it was online. I hope you have a wonderful summer!
Things to do for this week:
This week's instructional video The video goes a bit more into detail about pH. The pH scale is a way that we communicate acid/base information without requiring a lot of chemistry background. If we can get a bit more info out of that pH number, we can do a lot more useful work around acids and bases.
Here is the Key to check your work!--There is more than one way to approach the math on these so if yours looks a bit different than mine but we got to the same place...wonderful! :)
Sorry about the formatting being a bit crummy. :( I think it may look better/more complete if you open it in Google Docs.
Titration Simulation Instructions
Here is a decent simulation of a lab that we would have been doing if we were all together in the classroom. I'd like you to run through the Titration Simulation Level 1. I'd like you to take a selfie with the final screen that you get to for the lab and submit that as the lab assignment.
May 26, 2020 thru May 29, 2020
This week's videos will introduce you to the definitions of acids and bases. These definitions have changed over time; much like we saw with redox definitions. The first two definitions (Arhenius and Bronsted-Lowry) will get us through everything we need in this class. The last one (Lewis) is a great definition but unnecessary for the work that we will do. You can watch the Lewis part if you like or you can stop at that point. The second video also discusses the concept of conjugate acids and bases which will help you through question #4 on the homework.
Help Videos:
Bronsted Lowry and Lewis Definitions and Conjugate Acid Bases (Stop at the 8:15 mark unless you also want to learn about the Lewis definition)
Homework hints:
When you look at the problems for question 4 the key thing to remember is that an acid is a proton (H+) donor. You just need to remove one of the H's from the acid that is shown and you will have the conjugate base.
An example:
The acid in this example is HCL and the conjugate base for this acid would simply be Cl- ion. When the acid donated a proton (the H+) it became a chloride ion Cl- which is the conjugate base.
Weekly Practice 7.2-Last week you did the first three questions, this week your assignment is to complete the rest (the back side) of the weekly practice!
Here is the Key to check your work! You will need to open this in Google DOCS to see all of the calculations--Also, there is more than one way to approach the math on these, so if yours looks a bit different than the answer key, but you got to the same answer, then that is fine.
May 18, 2020 thru May 22, 2020
We are going to skip a weekly practice (7.1) that was just proficiency review and start our final unit of Chemistry!
Help Videos:
This week's videos will introduce you to something you've seen a lot in labs and in life: something being dissolved in water...a.k.a. A SOLUTION! The first video shows what happens to substances when they are being dissolved in water.
The second video shows how to make a solution (make sure you pay attention to that part...it is probably different than you might think!) and how to know how much to mix together to make the concentration that you want.
The third video covers how to use a simple equation to calculate the molarity or volume when you dilute a solution or add more of the solvent.
The fourth video covers some important vocab terms: Strength, dilute, and concentrated these all play a big role in Acid/Base Chemistry.
Video 1: What happens when stuff dissolves in water
Video 2: How to make a solution (Help for Question 1 and Question 2 part a)
Video 3: How to use the M1V1 = M2V2 equation to figure out dilution and concentration problems (Help for Question 2 part b)
Video 4: Strong vs Weak Acids (Help for Question 3)
After watching the videos you can look at my notes on solutions. Included in the notes are some more examples on how to calculate molarity.
Notes:
Solutions Notes PowerPoint version
Solutions and Acid Base Intro Notes Smartboard version from past years
Weekly Practice 7.2 (Do only the first page this week)- That is questions 1-3. We will cover the information for the second page next week!
Here is the Key to check your work! You will need to open this in Google DOCS to see all of the calculations--Also, there is more than one way to approach the math on these, so if yours looks a bit different than the answer key, but you got to the same answer, then that is fine.
May 11, 2020 thru May 15, 2020
Since we switched things up last week and did 6.4 a bit early...this week we will swing back around and do Weekly Practice 6.3!
This week we will also be taking a look at another of the many uses for REDOX reactions. These reactions can be used to determine the amount or concentration of certain substances. For instance stream biologists use something called the Winkler method to determine the amount of dissolved oxygen in a water sample. The Winkler titration method is a series of REDOX reactions. At the Oregon Coast Aquarium they will use this technique and another REDOX titration method in their Water Quality Lab to determine the amount of ozone (a disinfectant) in water samples from their larger exhibits. Ozone is a gas they inject into the water to kill bacteria.
One of the labs that we would have done in Chemistry this year had we been in school would have been to use a REDOX titration between hydrogen peroxide and potassium permanganate to determine the concentration of a store bought bottle of hydrogen peroxide.
Mr. Kanter and his wife put together our help videos this week using this lab to show how to perform this new lab technique called a titration and to determine the concentration of a sample of hydrogen peroxide. This titration technique is extremely useful in chemistry and is used extensively in the next unit on acids and bases.
The second video is showing the calculations we would go through to determine the concentration of the hydrogen peroxide. These calculations will be helpful for answering question #5 on your homework. Question #5 is only asking you to determine the number of moles of hydrogen peroxide in a sample, so you will not need to go through all of the calculations they go through in the video, only the ones to get you to the number of moles of hydrogen peroxide.
Make sure to watch Part 1 first and then Part 2 and for those that are interested here is a copy of the lab that they are doing. YOU DO NOT NEED TO ANSWER ANY OF THE QUESTIONS ON THE LAB. I have only posted it in case you are curious to see what it looks like and where the original equations they are using are coming from.
Weekly Practice 6.3--This weekly practice is a lot of review of things that we have been doing all year long!
Here is the Key to check your work!--Sorry about the formatting being a bit crummy. :( I think it may look better/more complete if you open it in Google Docs.
May 4th thru May 8th
With distance learning it makes sense for us to change the order of things a little bit in our REDOX unit. This week we are going to do Weekly Practice 6.4 instead of 6.3. We will do 6.3 next week.
You have actually learned everything you need to complete this weekly practice in the Redox Guided Learning and the Voltaic Cell WS.
One hint is that #11 is very important from the Voltaic Cell WS. The correct answer for that problem is
E(cell) = E(cathode) - E(anode) You will need to use this formula for calculating the cell potential for the batteries you make on the weekly practice.
Here are also the notes on Electrochemistry and Batteries These will help explain how a voltaic cell works , how we calculate the Ecell potential and whether or not a reaction will be spontaneous as written in the BCE.
There is a table of Standard Reduction Potentials at the bottom of the assignment that you will also need to use throughout.
Weekly Practice 6.4 WP 6.4 Key (sorry the formatting for this is so bad, but you should be able to piece it together)
(And there is at least one mistake on oxidation numbers. For question #3 the iron on the products side should be a +3)
April 27th thru May 1st
Not a lot to add this week. We want to give you a bit of a breather and some time to catch up if you need it.
Help Video going over question #8 from last week's weekly practice and how to do the net ionic equation for the reaction.
Add net ionic equations to Weekly Practice 6.2 --Start with #2 and then pick 4 other problems of your choosing. (not #8)
Contact one of your friends from one of our Chemistry classes and work together to come up with a way of remembering oxidation/reduction and anode/cathode. That is an important landmark for us! ( Check out question #5 and the info above it on the Demonstrating a Voltaic Cell assignment for one method of remembering this) Write your method on your homework for this week.
We will get back to batteries in detail next week, so use this week to get caught up with everything else if you are getting behind.
Notes on Redox Half Reactions (see videos from last week)
April 20th thru April April 24th
This week we will start taking a look at how redox reactions are used in our daily lives.
Two objectives this week:
The first one is to understand half reactions and how to work with them.
We will do this with the notes and the weekly practice. You can read my written notes and watch my help videos below.
Notes on Redox Half Reactions (see videos below)
Weekly Practice 6.2 Weekly Practice 6.2 Answer Key (the formatting for question 2 is a little off)
The second objective is to begin to understand how a voltaic cell works.
This week we will start looking into one of the most common uses of redox chemistry in our daily lives. Electrochemistry is the chemistry of batteries. We will be looking at some simple batteries ( called Voltaic Cells) to start to develop our understanding of how we can use the movement of electrons in redox reactions to our advantage.
The Introduction to Voltaic Cells WS will guide you through a voltaic cell and help you develop the skills needed to analyze and predict how the cell will work. (Don't worry if you are not able to answer all of the questions on this worksheet. Some of the questions will require a little more explanation which will be given in the notes next week.) This is meant to be an introduction to batteries so it will be graded on effort) In fact, go ahead and skip questions 12, 13, 17 and 18.
Answer Key for Voltaic Cells WS
The App for the worksheet can be found here: Voltaic Cells Applet This won't work on your phone, but will work on a chromebook , pc, or mac. If you are having trouble getting the app to work, here is a link to a video that shows what you need to see from the app to complete the worksheet: Voltaic Cells Applet Video
Part 1 Video of Redox Vocab and Half Reactions Notes
7EAC717A-C8BB-4493-9A64-1B7324EAA9B9-1108-00000118A33DD4C5.movPart 2 Video of Redox Vocab and Half Reactions Notes
Part 2 REDOX Vocab and Half Reactions.mp4April 13th thru April 17th
The two main goals this week are to learn how we define REDOX reactions and to start working with the two half reactions that make up a REDOX reaction.
You should use the Power Point below to take notes on how we define REDOX reactions:
REDOX Intro Power Point Smart board notes: Notes on Oxidation and Reduction
LEO goes GER A way to remember reduction and oxidation
To help with the second goal, you can watch this super helpful video by Mr. Anderson. Then work on the last 2 pages of the Guided Learning.
REDOX Introduction by Mr. Anderson (Watch up to the 9:18 mark where he starts into the applications portion)
Finish the last pages Redox--Guided Learning Activity. Give this your best shot. We will be talking more about half reactions and how they work next week, so I am not expecting you to get all of these questions correct.
Here is a little help if you are completely stuck. Guided Learning Help
Lastly this week we also start doing our Weekly Practices again.
Kahn Academy Video on REDOX Agents to help with the last question on weekly practice
April 6th thru April 12th
Hello and welcome back. My plan is to post all of the work I expect you to do for each week at the beginning of the week and make the due date in Google classroom for everyone be on Friday.
That way you won't have to worry about being at your computer for your specific class time. I would still recommend you look here and get started on Monday so things don't pile up on you and you fall behind.
This week is the first week of our next unit which will be looking at a category of reactions called Oxidation and Reduction (or REDOX) reactions. We have two main goals to accomplish this week.
In order to do well in this unit we will first need to figure out how to assign oxidation numbers. (I will post a video for you to look for help on these shortly.)
Oxidation Numbers Worksheet. Think of this like a numbers game, and this worksheet will teach you the rules!
Oxidation Numbers Help Video Yes, this is my first attempt at a video lecture...
The next thing we will need to be able to do is to start using these oxidation numbers.
We will do this by getting started on this Redox--Guided Learning Activity. For this week you only need to complete the first two pages (questions 1-6).
A few pointers to make your life easier with this worksheet:
Make sure to read the intro and start with question #1. You aren't asked to do anything more than look at the reactions until you start working on question #3. (Hint: to help you with the first question the answer can be found in how the reactions are separated into two groups.)
Spend no more than 2 or 3 minutes trying to answer question #2 . If after that much time you got nothin' than go ahead and put that as your answer.
Oh yes, on the examples under question 3 they are writing the oxidation number for each atom. You will need to do this
If you want to keep going with this work sheet you are more than welcome if you are looking for more to do.
If you need help:
Email me with any questions you have or say something like "I don't understand how to do question #4" I will try to answer you as quickly as possible thru email.
I also plan to have office hours. Currently I am thinking of Tuesday and Thursday at 11:00 am for my Chemistry classes. If that doesn't work for you I can add some office hours later. We also have a student teacher (Ms. Larson) who will be starting some office hour video chats as well.
Checking In
Use the following links to get to a General Chemistry Google Meeting:
I will post more meeting times as the week progresses.
I hope you are all doing well. Miss you guys. Beran
Here is a quick update of what was covered in Tuesday's meeting:
First and most important is to make sure you are all doing OK and letting you know that if you need help in some way to let me know or get in touch with the counselors at school. The school district wants to make sure that families have what they need in this crazy time. I am your Chemistry teacher, but you can also send me a note and I can help get you in touch with people that can help.
As for Chemistry stuff:
The first thing you should do now is to make sure that all of your missing work is completed and sent to me. Picture through email is the best way right now.
We will not be having a unit test on the reaction dynamics unit.
You will not need to turn in anything for the Hot Can Project
You will need to turn in the Heat of Reaction Lab if you haven't already done so. Those grades will be posted in the next day or so.
5.5 will be the last weekly practice for the unit.
As for the future:
At this point it looks like we will be going to an online or virtual format for the rest of the year. We have two units to finish which should be pretty straight forward.
We will more than likely start those next week. Our next unit will be REDOX reactions.
I will keep you updated as I learn more and be on the lookout on Thursday for class codes to join a Google classroom.
Take care and feel free to email me if you have any questions.
Coronavirus Week-ish
Here are my recommendations for you while we are off from school for the next week:
Continue working on this Weekly Practice 5.7 -- Review worksheet!
Wrap up your Hot Can Calculations if you haven't already. You can skip over the rest of the assignment, but the calculations will be good practice for the work we have been doing in class.
If none of this can be completed over the next two weeks, that's alright! We will figure things out when we all get back.
Most importantly take care of yourselves. Wash your hands, try not to touch your face, and get plenty of sleep! Those are going to be the best things you can do to keep you and your family healthy.
Thursday, 3/19/20 Friday, 3/20/20
Weekly Practice 5.7 -- Review worksheet! Due Today
Unit 5 Reaction Dynamics Test is today
Tuesday, 3/17/20 Wednesday, 3/18/20
Proficiency Opportunity--Naming
Hot Can Project Presentations will be given today.
Make sure to follow the grading guide but at a minimum you need to have the following to receive a score:
Heat (q) for your food and all the info that goes into calculating that!
Heat of Reaction--using the CRC books in the classroom or the table linked on the Useful Chemistry Links Page
Amounts of reactants needed
Thursday, 3/12/20 Monday, 3/16/20
Proficiency Opportunity--BCE 2
Weekly Practice 5.7 -- Review worksheet! Try to finish this by Tuesday/Wednesday of this week in case you have any questions.
The Rubber Band Lab will give you a good chance to practice what we have just been talking about as well as tie it all back to the ideas we talked about at the beginning of this unit! You can finish the entire thing in class today if you are efficient!
The rest of the time today can be used to finish your Hot Can presentation.
Here is a link to some creative websites that you could use to make an animated video, cartoon, digital story, or a fancy presentation. Remember you can also create a poster or record a video for your project.
THURSDAY-- Heat of Reaction lab due today for Thursday classes.
Tuesday, 3/10/20 Wednesday, 3/11/20
Weekly Practice 5.6 Due Wednesday / Thursday Be ready to go over this if time as we will have one more weekly practice next week.
Proficiency Opportunity--Molecular Geometry 2 and IMAF 2
Today we will be introducing the last bit of new content for this unit. Entropy and Free Energy will combine with our knowledge of Enthalpy and we will be able to definitively determine if a chemical reaction will or will not occur.
Determining Heats of Reaction Lab Due today for Wednesday classes.
Friday, 3/6/20 Monday, 3/9/20
Weekly Practice 5.6 Due Wednesday / Thursday
Weekly Practice 5.5 DUE TODAY Be prepared to go over homework and take a weekly quiz
Second half of class will be used for Hot Can work time.
Due Dates:
Determining Heats of Reaction Lab Due on Wednesday, March 11th and Thursday, March 12th
Hot Can Project This due date has changed and will now be March 17th and 18th.
Unit test March 19th and 20th
Here is a link to some creative websites that you could use to make an animated video, cartoon, digital story, or a fancy presentation. Remember you can also create a poster or record a video for your project.
WEDNESDAY, 3/4/20 THURSDAY, 3/5/20
Proficiency Opportunity--Bohr and Electron Config 2
Today is a Hot Can Project work day. Below is a list of things to accomplish during work days as well as some resources for you to use:
Know some things about the food:
What kind of food?
Specific Heat--cited or justified and cited
Specific Heats of Common Food Items from EngineeringToolBox.com
desired temperature change--with justification
mass of food--with justification
energy (q) needed to achieve the desired warming--with calculations!
Know your BCE
Balance the chemical equation
Determine heat of reaction from heats of formation. Use the following (Table of Chemical Thermodynamic Properties) or check with your instructor to OK alternate sources of data. Show your calculations!
Determine the mass of reactants required for your Hot Can--show your calculations
If you have all of that completed, you should be easily able to finish up the Hot Can Project on your own.
Some other Hot Can Resources
You can use the Hot Can Grading Guide to check your final project to see if you have all the necessary parts.
Monday 3/2 and Tuesday 3/3
Proficiency Opportunity--PT Trends 1
Today's class will be time to work on the Determining Heats of Reaction Lab. You will want to use your time today to make sure that you have quality data and observations for each of the two parts of the lab.
This lab write-up should be done individually and is due next week on Tue/Wed.
During the last 20-30 minutes of class, we'll take a look at a project that will be a large focus of the next week or so of class. Hot Can Project.
Thursday, 2/27/20 Friday, 2/28/20
Weekly Practice 5.4 Due today
Proficiency Opportunity-- IMAF 1 and Electron Geometry 1
Today we will be going over solution to a problem that Average Bond Energy brings into our calculations of energy changes.
Next class we'll be doing Determining Heats of Reaction Lab. Come to class Mon/Tues with the pre-lab work completed.
Tuesday, 2/25/20 Wednesday, 2/26/20
Proficiency Opportunity-- Bohr and Electron Config 1
Today we will review some of the ideas in the Bond Energy Guided Learning in a quick PowerPoint: Bond Energy and Enthalpy Change
We will use our Bond Energy knowledge to play the Enthalpy Costs Card Game. Your structures and scores will be turned in at the end of the game to be graded as a lab score.
Friday 2/21 and Monday 2/24
Weekly Practice 5.3--DUE TODAY!
Come prepared for the weekly review and quiz.
Today we will also work on the Bond Energy Guided Learning.
Wednesday 2/19 and Thursday 2/20
Proficiency Opportunity--Stoichiometry 1 and Dimensional Analysis 1
We'll spend the rest of this unit focusing on heat and energy and how they play a role in a chemical reaction. Today in class we are going to look at how we measure heat in the laboratory using a process called Calorimetry.
Tuesday 2/18
Weekly Practice 5.2 Due today
Weekly Practice 5.3 Due Friday (2/21) or Monday (2/24) depending on your class.
Be prepared to go over your homework and take a weekly quiz.
Turn in your Equilibrium and Le Chatelier's Principle Lab by the end of the day.
Thursday 2/13 and Friday 2/14
Proficiency Opportunity: Lewis Structures 1
Pre-Lab questions on the Equilibrium and Le Chatelier's Principle Lab are due at the beginning of class.
Today we will finish up any notes that we didn't get to on the previous day and then we will spend the rest of our time working on the Equilibrium and Le Chatelier's Principle Lab.
Tuesday 2/11/20 and Wednesday 2/12/20
Proficiency Opportunity : Naming 1
Today we will begin talking about a concept in Chemistry called Le Chatelier's principle. This principle will be a frequent reference for us throughout the remainder of the year.
Le Chatelier's Principle Notes
If there is time we will also get started on this Equilibrium and Le Chatelier's Principle Lab. Pre-lab questions are due at the beginning of the next class.
Friday 2/7/20 and Monday 2/10/20
Weekly Practice 5.1 Due Today
Weekly Practice 5.2 Due on Friday 2/14.
During the second half of class today we will take a look at the equilibrium constant and what that means relative to the M&M lab and Guided Learning. If we don't get to it we'll take care of it next week. Equilibrium Constant Notes
Wednesday 2/5/20 and Thursday 2/6/20
Proficiency Opportunity BCE 1
We will spend our time in this unit looking into what it means to be a chemical reaction--bonds break and are remade in a different way. We will look at how this happens, how we can alter the way it happens, and how energy plays a role in the process. Today our focus is going to be on an idea called Collision Theory which is the basic premise that we use to describe how reactions occur.
Monday 2/3 and Tuesday 2/4
Welcome to Second Semester!
Proficiency Opportunity: Sig. Fig. 1
Weekly Practice 5.1--This is a review of our proficiency topics for second semester. This Weekly Practice will be due at the end of the week.
Today we will start looking at equilibrium. We'll do this with candies before we start looking at chemical reactions. The M&M Equilibrium Lab will help you get a visual model of what it means for a system to be in "equilibrium."
After the M&M Lab (it's a quick one) we'll start looking at what equilibrium looks like on paper related to a chemical reaction and balanced chemical equations through the Equilibrium Guided Learning . You should finish up through question 13 on this guided learning WS before the next class period. I don't often collect Guided Learning work but I will collect and grade this one.
Monday 1/27 and Tuesday 1/28
Unit 4 test today
Micro-Mole lab due today
Thursday 1/23 and Friday 1/24
Weekly Practice 4.5. Due Today
Stoichiometry Review Warm Up Problem from today
Time was given to work on this Micro-Mole Rocket Lab. Data and write-up for this lab will be due on Monday/Tuesday next week. You will be able to turn in one lab write-up per group of 2 to 3.
Here is some extra Stoichiometry practice to help you prepare for the upcoming test. These assignments are not required, they are only meant to provide some extra practice.
Tuesday 1/21 and Wednesday 1/22
Weekly Practice 4.5. Due on Thursday and Friday of this week.
Time was given to work on this Micro-Mole Rocket Lab. Data and write-up for this lab will be due on Monday/Tuesday next week. You will be able to turn in one lab write-up per group of 2.
Here is some extra Stoichiometry practice to help you prepare for the upcoming test. These assignments are not required, they are only meant to provide some extra practice.
Thursday 1/16/20 and Friday 1/17/20
Weekly Practice 4.4 DUE TODAY
After going over the Weekly Practice and taking a small quiz, we will have some work time to finish the calculations for the Reaction Stoichiometry and Percent Yield Lab.
Next week we will be starting the Micro-Mole Rocket Lab . Students should read through this lab so they know what we will be doing during the next class period. You will want to get started as soon as possible with this lab when you come to class so MAKE SURE YOU READ THROUGH THE LAB BEFORE YOU COME TO CLASS!
Tuesday 1/14/20 and Wednesday 1/15/20
Weekly Practice 4.4 Due on Thursday and Friday this week.
Limiting reagent notes from today. Smart board Notes
Today we will be working on this Reaction Stoichiometry and Percent Yield Lab. The pre-lab portion of the lab will be due and stamped at the beginning of the class.
Some extra stoichiometry practice problems if you are so inclined:
Friday 1/10/20 and Monday 1/13/20
Due Today Weekly Practice 4.3 and up through Question #7 from this Intro to Stoichiometry Worksheet Be ready for the weekly quiz.
Weekly Practice 4.4 Due on Thursday and Friday of next week.
Limiting reagent notes from today. Smart board Notes
Homework: We will be working on this Reaction Stoichiometry and Percent Yield Lab on Tuesday and Wednesday next week. The pre-lab portion of the lab will be due and stamped at the beginning of the class on Tuesday/Wednesday.
Wednesday 1/08/20 and Thursday 1/09/20
Proficiency Opportunity: Balancing Chemical Equations and Naming
Today we will also talk about Stoichiometry and the Mol:Mol ratio along with going over some important things to consider whenever you are measuring or rounding your answers.. Stoichiometry Introduction Notes from today
Intro to Stoichiometry Worksheet We will spend some time working on this in class today. Complete up through question 7 for homework.
Monday 1/06/20 and Tuesday 1/07/20
Proficiency Opportunity: Electron Configuration and Bohr Model
Weekly Practice 4.2 DUE TODAY
Today we will be talking about Error Analysis--How did your error affect data, calculations, and the final result? This is an important skill to take away from Chemistry so we'll be working with it often in labs. Today we will focus on what you should and should not do in analyzing errors during a lab.
Wednesday 12/18/19 and Thursday 12/19/19
Today we will be working on the Hydrated Salt Lab. I'll start class by giving some introduction to lab materials that we have not used yet in Chemistry. I will also give some information that can help guide you with your procedure and data collection. Make sure you have read the Error Analysis part of the checklist before you come to class...it will be helpful to think about as you work on the lab!
You will need to have the calculations done for this lab by next class or you will have a hard time following the error analysis through our work. The final lab write-up will be due as a group on the Wed/Thu of the week after break.
Monday 12/16/19 and Tuesday 12/17/19
Weekly Practice 4.2 This will be due on Monday and Tuesday after winter break.
Mole Conversions Worksheet Due today up through at least question 10.
We will also spend a bit of time looking at the rules for rounding and how they come from the way that we are able to measure things.
Significant Figures and Measurements
On Wednesday/Thursday we will be doing the Hydrated Salt Lab to use mole conversions in the lab. Make sure you notice that this lab has the checklist...you will need to come to class on Wednesday/Thursday with the pre-lab portion of the checklist completed.
Thursday 12/12/19 and Friday 12/13/19
Weekly Practice 4.1 Due today
Proficiency Opportunity: BCE and Naming
Today we will be looking at some other conversion factors involving The Mole! Mole conversions will be very useful to us for the rest of the year.
Mole Conversions Worksheet Due next class period up through at least question 10.
Tuesday 12/10/19 and Wednesday 12/11/19
Proficiency Opportunity: Electron Configuration and Bohr Model
Weekly Practice 4.1 Due on Thursday and Friday of this week! (Don't panic, it won't take long to complete)
We spent today looking at the method we will be using to do conversions in chemistry. Remember that when you are working on assignments for the next couple of weeks the focus should be on developing your ability to set up and work through the problems and not just trying to get the right answer. Use the keys on the Weekly Practice worksheets to help check your work.
Friday 12/6/19 and Monday 12/9/19
Unit test 3 today.
Weekly Practice 3.5 More Review Problems due today.
Wednesday, 12/4/19 and Thursday, 12/5/19
Proficiency Opportunity:
Weekly Practice 3.5 More Review Problems We will spend the next class period working on these problems to review for the test.
Covalent Compounds Test will be this Friday and Monday.
Exploring Intermolecular Forces Lab due today at the end of the period.
Unit 3 Quizzes must be made up before the unit test on Friday/Monday!
If you have a Z in ANY of your proficiency scores, come see us at lunch!
Here are some more Lewis structures you can practice before the test on Friday/Monday.
More Practice with Lewis Dot Structures There are a few in here that don't follow the octet rule. Some can go into hyperoctet like sulfur and phosphorous. And there are a couple that are still "happy" by not achieving a full 8 electrons. Boron and aluminum will be OK with only 3 bonds. And aluminum, even though it is considered a metal can still sometimes form a molecule.
Monday, 12/2/19 and Tuesday, 12/3/19
Proficiency Opportunity: Naming 4 and BCE 3
Weekly Practice 3.4 Covalent Unit Review DUE today.
Weekly Practice 3.5 More Review Problems We will spend the next class period working on these problems to review for the test. We will finish it up by the end of the period.
Covalent Compounds Test will be this Friday and Monday.
Exploring Intermolecular Forces Lab due Wednesday and Thursday
Unit 3 Quizzes must be made up before the unit test on Friday/Monday!
If you have a Z in ANY of your proficiency scores, come see us at lunch!
Here are some more lewis structures you can practice before the test on Friday/Monday.
More Practice with Lewis Dot Structures There are a few in here that don't follow the octet rule. Some can go into hyperoctet like sulfur and phosphorous. And there are a couple that are still "happy" by not achieving a full 8 electrons. Boron and aluminum will be OK with only 3 bonds. And aluminum, even though it is considered a metal can still sometimes form a molecule.
Monday, 11/25/19 and Tuesday, 11/26/19
Weekly Practice 3.3--Due today---be prepared for the usual review and quiz that day!
Weekly Practice 3.4 Covalent Unit Review DUE Mon/Tue after Thanksgiving.
Exploring Intermolecular Forces Lab will be due on the Wednesday/Thursday of the week after Thanksgiving.
THURSDAY, 11/21/19 FRIDAY, 11/22/19
Proficiency Opportunity--Naming 3 and BCE 2
Weekly Practice 3.3--Will be due on Mon/Tue next week---be prepared for the usual review and quiz that day!
Today we will be working on the Exploring Intermolecular Forces Lab. The lab questions will be due Mon/Tue after Thanksgiving
Tuesday 11/19 and Wednesday 11/20
Proficiency Opportunity--Electron Configuration 3 and Bohr Models 4
A quick note on proficiencies: If you have noticed that your Chemistry Grade has dropped...check to see if you have a proficiency listed as missing. As we get further into the proficiencies, I am starting to mark more and more as missing which means you can come make them up.
Today we will be looking at the difference between polar bonds and polar molecules. Polarity causes some interesting interactions between separate molecules. We call those interactions Intermolecular Attractive Forces (IMAF). We will look into those IMAF's and some of their consequences today as well.
Notes on Molecular Polarity and Intermolecular Attractive Forces
Next class we will be working on the Exploring Intermolecular Forces Lab. The pre-lab questions are due at the beginning of class. You would also benefit from looking at the six properties that we are examining in the lab and determining how low or high IMAF would change the property.
Weekly Practice 3.3--Will be due on Mon/Tue next week---be prepared for the usual review and quiz that day!
Molecular Models Lab is due Monday/Tuesday next week.
Friday 11/15 and Monday 11/18
Weekly Practice 3.2 Due today
Proficiency Opportunity--Scientific Notation 4
Today we'll spend some more time with the models from last class and will look at the three-dimensional shapes that they make. We will discuss how the Lewis structure can be used to predict this shape!
We'll work some on the Molecular Models Lab today. The lab is due Thursday/Friday of next week.
Wednesday 11/13 and Thursday 11/14
Proficiency Opportunity: Electron Configuration 2 / Bohr Model 3
Weekly Practice 3.2 Due Friday and Monday depending on your class.
We will also spend some more time on Lewis Structures with this Molecular Models Lab The lab should be as complete as possible when you come to class on Friday/Monday. You should have everything on the table completed except the electron geometry and molecular geometry. Also try to answer as many of the questions on the bottom as you can. We will talk about the two geometries on Friday and Monday so that you can complete the entire lab by the end of the period.
Friday 11/8 and Tuesday 11/12
Weekly Practice 3.1 Due today
Come to class prepared for weekly review of homework and quiz
After the quiz today we will spend a little more time going over and practicing Lewis structures.
After this we will be taking a quick look at the difference in the bonds of ionic and covalent compounds. We'll use the Linus Pauling scale of electronegativity to distinguish between the bond types. This will also allow us to start thinking about polarity of bonds.
Wednesday 11/6 and Thursday 11/7
Proficiency Opportunities: Naming and Balancing
Today we will spend a bit of time talking about two things:
Nomenclature -- Ionic vs. Covalent Compounds
How we can model the shape of molecules.
Notes on Molecular Nomenclature and Lewis Structures (PowerPoint Notes)
Monday 11/4 and Tuesday 11/5
Unit 2 Test covering ionic naming and balancing equations.
After the test students worked on this Naming Molecular Compounds Guided Learning WS . (finish before next class period)
Thursday 10/31 and Friday 11/1
No school.
Wednesday 10/30
Weekly Practice 2.3 Due today (we will be going over this in class today) You can keep this to help you study for the Unit 2 test next week.
Remember you can also finish your Unit Self Evaluation assignment and use this to help you study for this test.
For this test you should be focused on naming ionic compounds and identifying and balancing chemical equations.
Some practice problems and worksheets to help you study for the upcoming test:
Monday 10/28 and Tuesday 10/29
Weekly Practice 2.3 This is the weekly practice for next week. Due on Wednesday 10/30
We'll use today as a wrap-up day and do some practice with naming and balancing.
Thursday 10/24 and Friday 10/25
Weekly Practice 2.3 This is the weekly practice for next week. Due on Wednesday 10/30
Weekly Practice 2.2 There was a mistake and the wrong weekly practice was posted for this week. It has been corrected. Please try to finish this one and by Friday but there will be some leeway if you are not able to finish it on time. The one that was posted was actually a review guide for the test, so we will still do it as well next week. Due on Friday for even classes and on Monday for odd classes.
Proficiency Opportunity: Naming 1
We'll use today as a wrap-up day and do some practice with naming and balancing.
Tuesday 10/22 and Wednesday 10/23
Weekly Practice 2.2 There was a mistake and the wrong weekly practice was posted for this week. It has been corrected. Please try to finish this one and by Friday but there will be some leeway if you are not able to finish it on time. The one that was posted was actually a review guide for the test, so we will still do it as well next week.Due on Friday for even classes and on Monday for odd classes.
Weekly Practice 2.1 We will go over these today and then take our weekly quiz.
You also have all of the information needed to complete the Single Replacement Lab and Metal Activity Series This lab will be due on Oct. 29th and 30th. All sections of the checklist will need to be completed except for the Error Analysis section.
I will be looking for the following things on your lab:
16 balanced reactions (When balancing you should use copper(II) and iron (III). Charges for silver and zinc are in your notes.
Correct names for all ionic compounds
Whether reaction happened or not for all 16 reactions
After each reaction some way to signify which metal should be placed higher or lower on table (like we did in our notes on Friday and Monday with the A, B, D, and G metals from the example I put on the board.
And finally, your Metal Activity Series that you created from your data. I know these will not be perfect and look just like the real one.
For extra practice over the weekend, you can fill out the Naming Ionic Compounds Guided Learning
Friday 10/18 and Monday 10/21
Weekly Practice 2.1 DUE TODAY We won't collect them, but we will be stamping today. The quiz has been moved to next week.
We went over Activity series notes today and discussed single replacement reactions in detail.
We will spend the rest of the class working on the Single Replacement Lab and Metal Activity Series This lab will be due on Oct. 29th and 30th. All sections of the checklist will need to be completed except for the Error Analysis section.
For extra practice over the weekend, you can fill out the Naming Ionic Compounds Guided Learning
Wednesday 10/16 and Thursday 10/17
Now that we have learned about reaction types, ionic naming, and how to determine if a double replacement reaction will occur we need to focus on how to balance an equation.
Balancing Chemical Equations PowerPoint
Smart Board Notes on Balancing Chemical Equations
We will also do a fairly quick lab looking at single replacement reactions and the Metal Activity Series.
Single Replacement Lab and Metal Activity Series
We will practice some balancing with the reactions from this lab. Remember these are single replacement reactions not double replacement like the last lab.
Charges for the transition metals in this lab: Fe +3, Cu +2, Ag +1, Zn +2. Also, remember that hydrogen gas is a diatomic so should be written as H2 (with the 2 being a subscript) when it becomes a product. You will need to keep track of hydrogen in the metal activity series as well.
At this point you should be comfortable doing the following:
Predicting the products of all 5 types of reactions (especially double replacement)
Naming ionic compounds (make sure your booklet is filled out with this information)
Charge balancing the reactants and products in a reaction with ionic compounds
Predicting whether or a not a reaction will occur in a double replacement reaction using the solubility rules
Balancing the elements in a chemical reaction
Monday 10/14/19 and Tuesday 10/15/19
Today we will wrap up charge balancing and naming of Ionic Compounds. We will also learn how to use the solubility rules to determine if double replacement reactions will occur.
For homework: the same six reactions from last weeks lab should now include A) correctly written reactions, B) correctly named compounds, and C) correctly balanced with charges. These reactions should now also include the state of each compound (aqueous or solid).
Booklet is due next class. Directions to make your booklet (see below)
We will be starting this lab during the next class. Please read through it and answer the Pre-lab questions. Single Replacement Lab and Metal Activity Series For question #1 you should have all compounds written correctly and charge balanced. We will work on balancing these equations during the next class period.
Thursday 10/10/19 and Friday 10/11/19
No Weekly Practice this week...the lab will take it's place this week since we only meet twice.
PowerPoint Notes covering ionic nomenclature and charge balancing
We will spend the next day or so working towards writing complete and correct balanced chemical equations. We started today by looking at how ions are formed and how we charge balance new ionic compounds. We also learned how to use the solubility rules to determine if a reaction will occur or not.
After today you should be able to correctly predict and charge balance all of the products for the lab we worked on last week along with being able to use the solubility rules to determine if the reaction occurred.
Tuesday 10/8 and Wednesday 10/9
No Weekly Practice this week.
Proficiency Opportunity: Scientific Notation 3
Today in class we'll go over the ideas that you came up with during the lab on Friday and Monday. Chemists have Five Reaction Types that describe the chemistry that happens in a wide range of reactions. We'll take a look at these five reaction types today and will practice using those reaction types to predict what the products of a chemical reaction will be. Over the next week or so, we will develop skills necessary to write out accurate and complete balanced chemical equations.
Before next class period students should write out 6 reactions correctly now that we know how double replacement reactions work. Be sure to leave some space between each chemical equation as we will need to fill in some information for each one.
Friday 10/4 and Monday 10/7
No weekly practice this week...the lab will take its place.
Today we will start to look at chemical reactions with this Chemical Reactions Lab This is a lab that encourages you to investigate a problem much like the first chemists did when they were trying to figure out how and why chemical reactions were occurring. We will use this lab to practice coming up with possible options and then will spend some during the next class deciding which of our possibilities is the most reasonable and why.
Lab questions are due next class period! (This is unusual, but we will be using them in the next class.)
Wednesday 10/2 and Thursday 10/3
Unit 1 Test today
Weekly Practice 1.4 --DUE TODAY
Atomic Spectra Activity is DUE TODAY (if you have not already turned it in)
Today we will spend some time reviewing during the first half of class. Come to class with your self evaluation sheet and any questions you have come up with. That will help make our review time more helpful for you!
We'll be taking the test for the unit during the second half of class.
Monday 9/30 and Tuesday 9/31
Weekly Practice 1.4 --you will want to get a jump on this weekly practice as it is due on Wed/Thu when you come for the test.
There are a few questions on the Weekly Practice this week that are listed as "Challenge" problems. That does not indicate that they are optional but just is to let you know that they won't be an immediate piece of cake. Everyone needs to give them a try and have an idea down for all questions in order to get full credit. :)
This is the last week of the Atomic Structure Unit. That means this coming Wed/Thu is the Unit Test. Remember that while you can use notes, homework, and other resources on the weekly quizzes...it is just you, the green PT, and your calculator on the end of unit tests. We need to take a few minutes and reflect on where we stand. Preparing for chemistry tests starts with thinking about what you have down pat and what you need work on. Use the Chemistry Test Review --- Self Evaluation to help guide this process. Your Self Evaluation is DUE with your test on Wed/Thu.
Class time today will be partially used to go over Weekly Practice 1.3 and work a bit on Weekly Practice 1.4 and partially time to ask questions that you have and start our review of Atomic Structure.
Thursday 9/26/19 and Friday 9/27/19
Proficiency Opportunity: Bohr Model 2 and Electron Configuration 1
Today we will cover the question: How do we know about atomic structure?
Neils Bohr modeled the atom (we have used his model a bunch!) and ran some calculations about what you would see the electrons do when they were excited by high voltage electricity. We will look at the emission spectra of hydrogen and a few other elements and take a look at the light produced to provide evidence that our model of the atom is a pretty good one!
Tuesday 9/24/19 and Wednesday 9/25/19
Proficiency Opportunity: Scientific Notation #2
Quantum Model and Electron Configuration
Here are some notes from a PowerPoint that discusses the quantum model of the atom in more detail than is needed in our course but you may find helpful. Quantum Model PowerPoint
Friday 9/20/19 and Monday 9/23/19
Weekly Practice 1.3 (For week of 9/23 thru 9/27)
Weekly Practice 1.2 Due today for Odd classes and Monday for Even classes.
Be ready for the weekly quiz
After the quiz today we started our discussion of the Quantum Model of the Atomic Theory. We will continue this during the next class period.
Quantum Model and Electron Configuration
Double Slit Experiment Video that was mentioned in class.
Here are some notes from a PowerPoint that discusses the quantum model of the atom in more detail than is needed in our course but you may find helpful. Quantum Model PowerPoint
Wednesday 9/18/19 and Thursday 9/19/19
Proficiency Opportunity: Scientific Notation
We will do a little review on how to use scientific notation. Here are some Scientific Notation Notes in case it has been a while since you thought about numbers in scientific notation to help you with this week's weekly practice.
Weekly Practice 1.2 Due on Friday for Odd classes and next Monday for Even classes. (Remember the answer key is in my room if you get stuck)
During class today we will focus on "Periodic Trends" because they tend to change in predictable ways as you move across and down the PT. All of these trends can be explained with Effective Nuclear Charge, so you should not attempt to memorize these. Instead it will help you immensely if you can logically reason how Effective Nuclear Charge is causing each of them to change.
Watch the two videos below which demonstrate periodic trends.
Which periodic trend does this video demonstrate?
This next video is a fake, but it is still worth watching. What periodic trend does this video demonstrate?
Monday 9/16/19 and Tuesday 9/17/19
Weekly Practice 1.2 (Remember the answer key is in my room if you get stuck)
We will spend the first 10 to 15 minutes of class to make sure everyone understands this Guided Learning WS on Average Atomic Mass. Afterwards, we will go over a few more practice problems with Average Atomic Mass Average Atomic Mass Notes.
Today we will be looking at the Periodic Table. Make sure you bring your Periodic Table to class today.
Today we will be looking at Effective Nuclear Charge (or Zeff). We will use Zeff to predict a variety of properties about atoms. The three that we will focus on in this class include:
atomic radius (size), electronegativity, and ionization energy
Notes from today on Effective Nuclear Charge
HOMEWORK: (due next class period)
We will model effective nuclear charge in class today and spend some time in class creating your own analogy similar (but different) to the ones we discussed in class. Here is a good example: Led Zefflin Concert You will also need to include a short written explanation that discusses how these things are depicted in your analogy and how they affect or are affected by the effective nuclear charge. You can do this on the back of the assignment.
number of protons
shielding electrons
distance from nucleus
First two electrons (with no shielding)
valence shell electrons
Thursday 9/12 and Friday the 13th
Proficiency Opportunity: Bohr Model 1
Today we will continue our look at isotopes by going over some isotope example problems. The majority of what we do today will be looking at Average Atomic Mass and how it is calculated. We'll do the Guided Learning WS on Average Atomic Mass. (if not finished in class, you should attempt to finish the remainder of the questions before the next class period)
Remember to finish the Weekly Practice Problems 1.1 All isotope numbers should be indicated on both the name and symbol for EVERY problem on the weekly practice 1.1 assignment.
Weekly Practice Problems 1.1 (Due today for odd classes and on Friday for even classes) There will be a quiz covering this material on the due date.
Tuesday 9/10/19 and Wednesday 9/11/19
More practice with the parts that make up an atom and isotopes Isotopes POGIL
Weekly Practice Problems 1.1 (Due on Thursday 9/12 for odd classes. Due on Friday 9/13 ( for even classes.) There will be a quiz covering this material on the day that it is due for your class.
Friday 9/6/19 and Monday 9/9/19
Today we will aim to accomplish a number of things:
We will use what we found during the scavenger hunt to learn about the safety procedures and features in the room to make sure that everyone is safe in the lab.
Go over the way the class will work this year and how things like homework, quizzes/tests and labs will be run.
Take a quick quiz that covers how the course works and the syllabus.
Weekly Practice Problems 1.1 (Due on Thursday 9/12 for odd classes. Due on Friday 9/13 ( for even classes.) We will clean up the part about isotopes and neutrons in the next class period. There will be a quiz covering this material on the day that it is due for your class.
Wednesday 9/4/19 and Thursday 9/5/19
HOMEWORK
As homework for this first day, students are to do the following before the next scheduled class period:
Read the Course Syllabus (see below) (a hard copy will not be provided, nor will it be needed). Bring your questions for the next class period.
Print out the last page of the Course Syllabus and return it signed by both you and your parents. This insures that all students are able to access and obtain materials off of the class website and that parents and students understand class expectations.
Print, read, and then sign the Safety Contract (see below) Have your parents sign this contract as well. Signed Safety Contracts are to be returned to class prior to participating in lab activities.