Final answer:
Equilibrium is a state in which the rate of the forward reaction equals the rate of the reverse reaction. It is a dynamic equilibrium, meaning there is no net change in concentrations of reactants and products.
Step-by-step explanation:
Equilibrium is a state in which the rate of the forward reaction equals the rate of the reverse reaction. It is a dynamic equilibrium, meaning there is no net change in concentrations of reactants and products. At the point of equilibrium, no more measurable or observable changes in the system can be noted.