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AP® Chemistry

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Definition of Equilibrium

APCHEM-CH1NLE

Your friend states, "When a reaction reaches dynamic​ equilibrium, everything stops."

Why is your friend incorrect?

A

There are reactants and products still present, so the reactants are still working to form products by proceeding in the forward reaction.

B

The concentrations of reactants and products must be equal since the rates of the forward and reverse reactions are equal.

C

The reactants must completely disappear for the reaction to stop, which means it should be proceeding in the forward direction.

D

The concentration of reactants and products remain constant since the rates of the forward and reverse reactions are equal.