Essential Chemistry for IGCSE - Chemical Reactions (Section 3 - No. 13)
Which of the following statements correctly describes what happens to the concentration of reactants and products at equilibrium?
The concentration of reactants increases.
The concentration of products decreases.
The concentrations of reactants and products are constant.
The concentrations of reactants and products are equal.
Explanation
At equilibrium, the rates are equal and therefore the concentrations stay constant.
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