When a reaction is reversible, eventually the rates of the forward and reverse actions will be equal. Which of the following best explains what this means? (3 points)
Select one:
a. The concentrations of the reactants and products have become equal.
b. The concentrations of the reactants have become constant.
c. The concentrations of the reactants have not reacted well.
d. The concentrations of the reactants have completed their reaction.