Question

What does equilibrium mean?

Answer 1

if it is for chemistry, it means when the reaction and opposite reaction happens at the same rate.
the closest answer to that definition would be (b.)

Answer 2

C)

Step-by-step explanation:

In Chemistry, equilibrium means that in a system A + B ↔ C + D, both the reaction and the opposite reaction are happening at the same rate.

In the example, this would mean that C and D are being produced at the same rate that C and D convert into A and B. In other words, the concentration of both reactants and products remains constant.

Thus the answer is C.