Question

Which one of the following statements is true about catalysts?

A. Catalysts lower the activation energy of a chemical reaction
B. They change the rate of a chemical reaction without being used up.
C. They change the rate of a chemical reaction but are always used up.
D. They can only slow down the rate of a chemical reaction.

Answer 1

Can u choose 2 statements ?

Answer 2

No

Answer 3

A

Answer 4

They increase the rate of the reaction by decreasing the activation energy

Answer 5

Thanks!!

Answer 6

But what I also know is that catalysts aren't used up during a reaction ! And that answer is also here

Answer 7

@abb0t what do u think ?

Answer 8

This is the actual question:

Which one of the following statements is true about catalysts?

A. They are required for a chemical reaction to take place.

B. They change the rate of a chemical reaction without being used up.

C. They change the rate of a chemical reaction but are always used up.

D. They can only slow down the rate of a chemical reaction.

Answer 9

I accidentally asked a question that had the wrong answer choices

Answer 10

B ?