Answer:
C. catalyst is the correct answer.
Step-by-step explanation:
Something that causes and event to occur is known as a(n) catalyst.
- catalyst is used to increase the rate of chemical reaction without getting used in the reaction process and without changing the chemical equilibrium.
- catalyst a small amount of the catalyst is enough to catalyze the endless reactions.
- A catalyst increases the speed of the reaction by decreasing the activation energy.