Chemical Reactions Inquiry A,B,C, and D

Learning Target: I will be able to Identify the characteristics of a chemical reaction.

Standards : CHEM.B.2.1.4 Predict products of simple chemical reactions (e.g., synthesis, decomposition, single replacement, double replacement, combustion).CHEM.B.2.1.5 Balance chemical equations by applying the Law of Conservation of Matter.

Engage:   Chemical Reactions are about change. Grass grows, steel rusts, hair is bleached, dyed or straightened. Natural gas burns, Nylon is produced for clothing...These are just a few examples of chemical changes that affect us. 

Directions : Answer the questions in your notebook.  You do not need to write the question, but you should do all of the questions in order and you should have the correct labels. Remember that your work is a study guide for YOU to use.  You may want to write a sentence or  more that a one word answer.  You are doing Parts A,B,C and D.

A. What do you already know?

1. How can you tell that a chemical reaction has taken place?

2. Hydrogen gas reacts with oxygen gas to form water. Try to write a chemical equation for this reaction.

3. What is the Law of Conservation of Matter? (Text p.220 in blue, or use the web) Write it in your own words.  You can use your book or the web for help.

4.  Make a list of "Evidence for a chemical reaction."  Give an example of each Type of evidence. Use the Web or Textbook : Read page 218 . Look at the pictures on page 219. 

B. What is a Chemical Equation?

Explore: 

    1.Define the following Key Words: 

        a. Chemical reaction.

        b. Chemical equation

        c. Reactants

        d. Products

        e. Balancing the chemical equation.

     2.  Describe the chemical equation of methane and oxygen reacting Us the web or (Textbook: Use the information on page 220):

          a. In words

          b. With chemical formulas

          c. Label the reactants and products

          d. What does the arrow in the chemical equation represent?

    3.  Why does it need to be "Balanced" , for a chemical reaction?( p.220)

    4. What is the balanced chemical equation for the reaction of methane and oxygen?

    5. What does the symbol (aq) mean?

Explain:  Explain in your own words what a chemical reaction is, and how it must be written and balanced.  Use science terms.  Use complete sentences and write a six sentence paragraph.

Elaborate: What is the chemical equation for the following:

 Also, Label the reactants and the products.

1.    K + H2O  ->

2.   C + O2  ->

3.   Zn + HCl (aq)  ->

Evaluate :   Do this Formative Evaluation to demonstrate  what you understood.  

                  1.  Choose a 

Food chemistry Reaction...Cooking is a chemical reaction, Find out some chemistry related to cooking your favorite food.:   Example of a Food Chemistry Reaction.  This will be submitted immediately when completed, as a Google Doc like this :  The Food Doc  

Learning Target: I can identify and explain the different types of chemical reactions.

                           Balance Chemical Equations.

C .  Types of Chemical Reactions and Balancing

Engage:   The chemical reactions that are most important to us and all living things, occur in water-aqueous solutions.  The chemical reactions that keep us alive take place in our blood and cytoplasm of cells.

1. Name some things that a cell would need to stay alive.  What type of molecules are these?

2. What kind of chemical reactions might happen in a cell?

Explore: C. Define the following Key Terms which are types of chemical reactions:

Text p.263

1. Synthesis Reactions

2. Decomposition reactions

3. Single Replacement reactions

4. Double Displacement reactions

5. Combustion Reactions

6. Acid-Base Reactions ( Neutralization)

7. Coefficient

8. Subscript

9. Precipitate

Find an example of each type of Reaction either from the textbook or web.  

    1. Write the balanced equation

    2. Label the type of reaction

.

Explain:  Explain in your own words how there are different types of reactions and describe them.     Write at least a six sentence paragraph. 

Elaborate: Balance and Classify the following equations:

1.) N2 + H2   ->   NH3

2)   S8 + O2   ->   SO2

3)  Zn(OH)2  ->  ZnO   + H2O

4)  KOH + HCl   ->    H2O + KCl

5)  KBr + Cl2  ->  KCl    +Br2

6) Challenge:   C2H2 + 5O2   ->   CO2   +H2O

Evaluate :   Take this Formative Quiz to see what you understood:  QUIZ

Part D: 

 The BIOLOGY Connection :

Standards 

BIO.3.1.B.A2. Identify the initial reactants, final products, and general purposes of photosynthesis

BIO.A.2.3.1 Describe the role of an enzyme as a catalyst in regulating a specific biochemical reaction.

BIO.A.2.3.2 Explain how factors such as pH, temperature, and concentration levels can affect enzyme function.

1. Find the chemical equation for Photosynthesis and write it out in words and in chemical formulae.

2. What Kingdoms of living things are capable of doing Photosynthesis reactions?

3. In what structures does photosynthesis occur?

4. What is the function of an enzyme in living things?

5. What is pH measuring?

6. How does pH affect enzymes ? What does denatured mean?

7. Find a graph of "Optimal pH for an enzyme", sketch it.  Explain the graph in a few sentences.

8. Find and sketch a graph of "Optimal Temperature for an Enzyme".  Write a few sentences explaining the graph. Explain the temperatures at which the enzyme would be denatured.

9.  Sketch a graph showing how the concentration of an enzyme will affect a reaction.  Explain the graph.

10. Make a table that explains how the rates of chemical reactions can be changed.

Cellular Respiration occurs in the Mitochondria of living things like plants, animals, Fungi and Protists.

11. What is meant by Cellular Respiration?

12. What is the over-all chemical  equation for Cellular Respiration?