Question

How does a catalyst affect chemical change?

a. Catalysts do not cause chemical changes
c. By slowing down a chemical reaction
b. By speeding up a chemical reaction
d. None of the above

Answer 1

Answer:lower activation energy

Step-by-step explanation:

Answer 2

B) Catalyst speed up a chemical reaction- this is because they lower the activation energy for a successful collition to take place :)