Respuesta :
Answer: when the rates of the forward and reverse reactions are equal
Explanation:
The reactions which do not go on completion and in which the reactant forms product and the products goes back to the reactants simultaneously are known as equilibrium reactions.
Equilibrium state is the state when reactants and products are present but the concentrations does not change with time.
The equilibrium is dynamic in nature and the reactions are continuous in nature. Rate of forward reaction is equal to the rate of backward reaction.
A chemical equilibrium is dynamic in nature as forward and backward reactions continue for indefinite time and never stops.
