This question is about equilibrium. Describe how a reaction reaches equilibrium.

Answer:
A reaction is at equilibrium when the amounts of reactants or products no longer change. Chemical equilibrium is a dynamic process, meaning the rate of formation of products by the forward reaction is equal to the rate at which the products re-form reactants by the reverse reaction.
Equilibrium is said to be reached when the rate of forward reaction is equal to the rate of reverse reaction.
In a chemical reaction, equilibrium is said to be reached when the rate of forward reaction is equal to the rate of reverse reaction. When that occurs, the system would come to a state in which the concentration of each of the species involved does not change.
Thus, equilibrium is said to be reached when the rate of forward reaction is equal to the rate of reverse reaction.
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