Rates of reaction: how fast or slow a reaction happens
1. lessons with BBC Bitesize
2. Words you'll need to know for rates of reaction
3. Clip: if students were particles...
Year 11 level Acids and Bases
4. Hangman game for Acids and Bases
The Basics: aim to eventually be getting 100% in these quizzes and activities
Use this quizlet set, to check your knowledge of the basics
Now try the acids and bases quizlet set.
You could use this Year 10 acids and bases quizlet set to learn more.
Aiming for excellence:
1. weak and strong acids, what's happening in them
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Quick revision notes from Mrs Robinson: (remember this isn't everything you need to know)
Remember, you may need to REPEAT these facts in multiple questions in any given exam! If told you 'may' do a drawing, interpret this as DO A DRAWING
1. How ions are formed and what an element's position on the periodic table means
valence electrons --> transferred to or from another atom to achieve full (stable) outer shell
in ions p+ number is no longer equal to e- number: remember to state the number of protons!
period = row = number of shells; group = column at each side this relates to number of valence e-
DO NOT: talk about atoms like they are people, forget to define terms, don't use the word 'shared' about valence electrons in ionic compounds
2. pH and indicators
indicators CHANGE COLOUR to show pH
for Litmus and Universal Indicator, red = acid; blue = base
pH = measure of the concentration of H+ ions in solution (how acidic/basic a solution is)
More H+ than OH- = acidic; equal proportion in a solution = neutral
3. Neutralisation reactions (acid + base) NOTE that all produce water
MEMORISE THESE:
a. acid + metal hydroxide base --> salt + water
b. acid + metal oxide base --> salt + water
c. acid + metal carbonate OR metal hydrogen carbonate --> salt + water + carbon dioxide
4. writing formulae and balancing equations
write the formulae, ensure the ratio of each ion is correct in each formulae (e.g. one 2+ ion for every 2 -1 ions) --> use the ions table!
then balance the equation by checking there is the same number of each atom on each side; you cannot change the formulae!