Question

Which of the following are correct statements about reactions?

Check all that apply.
A. If a reaction happens, it will be very fast.
B. During a reaction, a catalyst is always used up along with the
reactants.
C. A catalyst could decrease the activation energy of a reaction.
D. Some reactions can occur more slowly than others.

Answer 1

I think it is D.

Step-by-step explanation:

Answer 2

Answer: i know it d but i think it is c to

Step-by-step explanation: