1. Chapter 13 Test: Friday, Feb. 23rd
I can count atoms in a chemical formula.
I have the prefixes memorized. (Dinitrogen)
I can state the definition for the Law of Conservation of Mass.
I can identify the parts of a chemical equation: subscripts, coefficients, reactants, products, and yield sign.
I can count and compare to determine if a chemical equation is balanced.
I can identify a chemical reaction: synthesis, decomposition, single or double displacement.

2. Types of Reactions
Reactions can be classified into one of four categories: synthesis , decomposition, single-displacement, and double-displacement.
P + O2 → P4O10
HgO → Hg + O2
Cl2 + NaBr → Br2 + NaCl
BaCl2 + Na2SO4 → NaCl + BaSO4
Synthesis
Decomposition
Single-Displacement
Double-Displacement

3. SYNTHESIS

4. DECOMposition

5. Single-Displacement

6. Double-Displacement

7. I can identify factors that affect the rate of a reaction.
Today’s Goal!
I can identify factors that affect the rate of a reaction.
I’ll know I have it when…
I can explain why little pieces of ice melt faster than a giant block of ice.
I can explain why using more Mentos would cause a bigger reaction when dropped in a bottle of Diet Coke.

8. What affects the rate of a reaction?
How can I speed up or slow down a chemical reaction?
Temperature
Concentration
Surface Area
Inhibitor
Catalyst
Rate of Reactions Video

9. FACTOR How does it affect it?
TEMPERATURE
If you increase the temperature, the reaction will happen faster.
If you add more of the substance, the reaction will increase.
CONCENTRATION
If you increase the surface area (make the pieces smaller), the reaction will speed up.
SURFACE AREA
CATALYST
A substance that speeds up the reaction
A substance that slows down or prevents the reaction
INHIBITOR

10. AS A GROUP…
Look through the pages and carefully read the information given to you.
Then answer the question that is being asked.
Record your answers on the response sheet.
When your group has finished, turn in the questions to the front.

11. Rate of reaction homework:
On a sheet of white computer paper, create a poster using words and pictures that explains the factors that affect the rate of chemical reactions. Each factor should have a picture to represent it.
How to Change the Rate of a Reaction…