Answer:
E. It decreases the activation energy hurdle.
Explanation:
A catalyst is a substance that:
- speeds up the rate of a reaction
.
- does not alter the products of the reaction
.
- is unchanged chemically and in mass at the end of the reaction.
A catalyst provides an alternative reaction pathway that has a lower activation energy than the uncatalyzed reaction.
The effect of a catalyst on the activation energy is shown on attached image. This shows how the energy of the reactants and products change during a reaction.
