How are the following aspects of a reaction affected by the addition of-a catalyst?
A. Increased :
B. Decreased :
C. Not affected :

1. activation energy of the forward reaction
2. rate of the forward reaction
3. activation energy of the reverse reaction
4. rate of the reverse reaction

What other aspects of a catalyzed reaction are different from the uncatalyzed reaction? Select all that apply
a. ∆Hᵣₓₙ
b. the overall reaction
c. the mechanism