The basic premise of the collision theory is that particles must first if a reaction is to occur. Additionally, that
must be effective. To be effective, the particles must
with the and the proper amount of .
2. is the study of reaction rates which is the rate at which the disappear and the products .
3. There are five factors affecting the reaction rate:
a. of the
b. of the
c.
d.
e.
4. Use the collision theory to explain:
a. A mixture of hydrogen gas and chlorine gas reacts faster when the volume they occupy is decreased: ​ ​
b. Iron filings rust faster than iron wire: ​ ​
c. An increase in temperature increases the reaction rate:


5. Why do you think that industrial chemists are concerned with reaction rates?


6. act as catalysts in our bodies. Outside the body, sugar burns only when temperatures are above 600 ºC, but inside the body sugar burns (is oxidized) at normal body temperature, which is 37 ºC. How is this possible?
​
​
7. Double arrows in an equation mean that the equation is .
Brackets around a formula represent .
8. In a state of chemical equilibrium, the forward and reverse reactions are proceeding at the same .
9. Principle states that when a stress is applied to a system in , the system reacts to the stress.
10. Using the reaction below, predict the direction of the equilibrium displacement (left or right) when the following stresses are applied:
2 SO2 (g) + O2 (g) 2 SO3 (g) + 45 kJ
a. increasing temperature
b. decreasing pressure ​
c. adding SO2(g) ​ ​
d. removing O2(g) ​ ​
Will the [SO3] increase or decrease in the above situations?
​a. ​ ​b. ​
​c. ​ ​d. ​