1. Chemical Reactions
Draw a diagram showing what happens to atoms in a chemical reaction.

2. Chemical Reactions
Draw a diagram showing what happens to atoms in a chemical reaction. What does a scientist observe that indicates a chemical reaction occurred?

3. Chemical Reactions
Draw a diagram showing what happens to atoms in a chemical reaction. What does a scientist observe that indicates a chemical reaction occurred? How do the diagram and observations relate to the law of conservation of mass?

4. Chemical Reactions
Na + O2 Predict the product.

5. Chemical Reactions Na + O2
What signs are there a chemical reaction took place?
How many products are made?

6. Chemical Reactions Na + O2 Na2O Draw what the atoms are doing.
Relate to the law of conservation of mass

7. Types of Chemical Reactions

8. Synthesis

9. Synthesis Reactions

10. A = Red B = Blue C = Green D = Yellow
Type of Reaction
Definition
 Equation
Synthesis
Two or more elements or compounds combine to make a more complex substance
A + B → AB
A = Red B = Blue C = Green D = Yellow

11. Decomposition

12. Decomposition Reactions

13. into simpler substances
Type of Reaction
Definition
 Equation
Synthesis
Decomposition
Two or more elements or compounds combine to make a more complex substance
A + B → AB
AB → A + B
Compounds break down
into simpler substances
A = Red B = Blue C = Green D = Yellow