1. Q2 Balance These Equations; then identify the type of reaction.
Sb + O2 ---> Sb4O6
2. Mg + N2 ---> Mg3N2
3. H3AsO4 ---> As2O5 + H2O
4. Al(OH)3 + H2SO4 ---> Al2(SO4)3 + H2O

2. Q2 Balance These Equations; then identify the type of reaction.
Sb + O2 ---> Sb4O6
2. Mg + N2 ---> Mg3N2
3. H3AsO4 ---> As2O5 + H2O
4. Al(OH)3 + H2SO4 ---> Al2(SO4)3+ H2O 2 3 2 3 2 2 2

3. Today’s Objective: I understand the conditions that affect the rate of a chemical reaction.

4. Unit Test: Tuesday
Study your vocab cards

6. Accounts for conversion of small amounts of mass to energy
Mass-Energy Equation
Accounts for conversion of small amounts of mass to energy

7. Stored inside of the chemical bonds of the substances
Chemical Energy:
Stored inside of the chemical bonds of the substances

8. Energy is needed to break bonds.

9. Amount of energy (usually heat) needed to start
Activation Energy
Amount of energy (usually heat) needed to start
a chemical reaction.

10. The rate the reaction progresses at...
Reaction Rate:
The rate the reaction progresses at...
How fast the reaction is occurring.
Fast
Slow

11. Conditions that affect the rate of a chemical reaction

12. More movement =
More collisions =
More reactions =
Faster reaction rate

13. Affects Reaction Rate
Temperature
More heat = faster rate

14. Surface Area
More surface area 
Faster reaction
Stirring

15. Concentration
More reactants 
faster reaction

16. Catalyst
Substance that affects reaction rate without interfering with the reaction

17. A catalyst lowers the amount of energy that is needed to start the reaction.
Normally needs
this much energy
With catalyst
only needs this
much energy

19. Reduce the volume

20. 2) Increase concentration

21. 3) Increase the velocity

22. 4) Increase surface area

23. 5) Add a catayalst to lower activation energy