Section 17.2
Factors Affecting Reaction Rates
Practice Test
1.
What happens to the activation energy of the reaction when a catalyst is present?
SC.B.2.4.1
a.
The activation energy increases.
b.
The reaction stops.
c.
The activation energy decreases.
d.
The activation energy does not change.
Hint
2.
A substance that speeds up the reaction rate but is not consumed in the reaction is a
n
____________.
SC.A.1.4.4
a.
product
b.
inhibitor
c.
reactant
d.
catalyst
Hint
3.
When the concentration of a reactant is increased, the _______________.
SC.A.1.4.4
a.
reaction speeds up
b.
reaction rate does not change
c.
reaction slows down
d.
reaction stops
Hint
4.
What will happen when you decrease the surface area of a reactant?
SC.A.1.4.4
a.
The reaction speeds up.
b.
The reaction rate does not change.
c.
The reaction stops.
d.
The reaction slows down.
Hint
5.
When you increase the temperature of a chemical reaction, the ____________.
SC.A.1.4.4
a.
reaction slows down
b.
reaction speeds up
c.
reaction stops
d.
reaction rate does not change
Hint
6.
What is the name given to a catalyst that exists in the same physical state as the reaction being catalyzed?
a.
ephemiral catalyst
b.
homogeneous catalyst
c.
heterogeneous catalyst
d.
solid-state 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.
ephemiral catalyst
b.
homogeneous catalyst
c.
solid-state catalyst
d.
heterogeneous catalyst
Hint
