Question

According to collision theory, which of the following best explains how a catalyst increases the reaction rate for a chemical reaction?

A. A catalyst decreases the threshold energy for a chemical reaction.
B. A catalyst decreases the amount of energy released by a reaction.
C. A catalyst increases the average kinetic energy of the particles in a reaction.
D. A catalyst increases the rate of particle collisions in the proper orientation.

Answer 1

@JFraser A?

Answer 2

@aaronq A?

Answer 3

it is