Question

What is the expected outcome of adding a catalyst to a chemical reaction?

A.
The reaction will speed up.

B.
Chemical equilibrium will not be reached.

C.
The reaction will slow down.

D.
No change will occur.

Answer 1

The expected outcome would be A. The reaction will speed up after adding a catalyst to a chemical reaction.

Answer 2

The reaction will speed up. option A is correct 
If the conditions are right, then the catalyst may allow a reaction to occur at a lower than normal temperature and at a faster than normal rate.
hope this helps