Question

Which statement about a catalyst is correct?

1) A catalyst slows down a chemical reaction.
2) A catalyst speeds up a chemical reaction.
3) A catalyst has no affect on a chemical reaction.

Answer 1

choice 2

Step-by-step explanation:

because the catalyst reduces the activation energy of the reactants so the reaction then requires lower energy to occur then the reactents reach that energy in shorter time so the reaction takes shorter time .