Question

A reaction is shown below.

Answer 1

I think it would be B "A heterogeneous catalyst is being used in the reaction"

This is because MnO2 is a heterogeneous catalyst as it's in a different state than the rest of the reactants and products.
The MnO2 isn't being used as a reactant so it's a catalyst.
MnO2 is not an enzyme

hope that helps 

Answer 2

Answer:

B

Explanation:

I took the test