GCEChemistryChemical Equilibrium2024

Which of the following statements correctly describes a system at chemical equilibrium?

AThe concentrations of reactants and products are equal
BThe forward and reverse reactions have ceased
CThe rate of the forward reaction equals the rate of the reverse reactionCORRECT
DOnly the reverse reaction is occurring
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Why the answer is C, and why the others tempt you.
At chemical equilibrium, both forward and reverse reactions continue to occur but at equal rates, so there is no net change in concentrations. The concentrations of reactants and products are not necessarily equal, they are simply constant.
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