what happens to a catalyst in the end of a chemical reaction?

Answer 1

Nothing.

Answer 2

are you sure?
is a question i have to anwser? it doesnt like disapear or anyting?

Answer 3

No, it remains unchanged.

Answer 4

Supplementary information. The catalyst entered into the reaction in one form or another but in the end it is regenerated and is unchanged from what it was at the beginning.