1. Conservation of Matter
Page 91: Notes
Conservation of Matter

2. II. Law of Conservation of MATTER- page 205
What is meant by “conservation of mass?
The mass of the ________ equals the mass of the ________ because they are the same ______! They have just been rearranged into new _____.
reactants
products
atoms
compounds

3. II. Law of Conservation of Mass- page 205 text
What does “conserve” mean?
To stay the same- TO NOT CHANGE.

4. III. Did you Lose Anything?
FINISH THE ACTIVITY worksheet, then clean up the coins
Place coins back on template so Mrs Aguirre can collect them
You have 10 minutes to finish.
If absent, get a worksheet from Mrs Aguirre when you return- and tape it to page 91

6. Reactants + We started with: acetic acid and sodium bicarbonate
USE COLORS TO MATCH THE MODELS YOU BUILT
Reactants
We started with:
acetic acid and sodium bicarbonate +
BUILD THE MODEL OF REACTANTS-
THEN DRAW IT ON PAGE 90
How many carbon atoms?
How many oxygen atoms?
How many hydrogen atoms?
How many sodium ions?

7. Products + + The products are:
Water and carbon dioxide and sodium acetate + +
BUILD AND THEN DRAW YOUR PRODUCTS ON PAGE 90
USE COLORS TO MATCH THE MODELS YOU BUILT
How many carbon atoms?
How many oxygen atoms?
How many hydrogen atoms?
How many sodium ions?

8. Page 90: Chemical Reactions