Section 17.2
Factors Affecting Reaction Rates
Practice Test
1.
When the concentration of a reactant is increased, the _______________.
a.
reaction speeds up
b.
reaction slows down
c.
reaction stops
d.
reaction rate does not change
Hint
2.
What will happen when you decrease the surface area of a reactant?
a.
The reaction speeds up.
b.
The reaction slows down.
c.
The reaction stops.
d.
The reaction rate does not change.
Hint
3.
When you increase the temperature of a chemical reaction, the ____________.
a.
reaction speeds up
b.
reaction slows down
c.
reaction stops
d.
reaction rate does not change
Hint
4.
A substance that speeds up the reaction rate but is not consumed in the reaction is a(n) ____________.
a.
reactant
b.
product
c.
catalyst
d.
inhibitor
Hint
5.
What happens to the activation energy of the reaction when a catalyst is present?
a.
The activation energy does not change.
b.
The activation energy decreases.
c.
The activation energy increases.
d.
The reaction stops.
Hint
6.
What is the name given to a catalyst that exists in the same physical state as the reaction being catalyzed?
a.
homogeneous catalyst
b.
heterogeneous catalyst
c.
solid-state catalyst
d.
ephemiral catalyst
Hint
7.
Automobiles use a catalytic converter made of metal to ensure complete combustion of gasoline. What type of catalyst is present in automobiles?
a.
homogeneous catalyst
b.
heterogeneous catalyst
c.
solid-state catalyst
d.
ephemiral catalyst
Hint
