Chemical equilibrium is a state where the concentrations of the reactants and products in a chemical reaction do not change over time. This does not mean that the reaction has stopped, but rather that the rates of forward and reverse reactions are equal.
The law of mass action states that the equilibrium constant (Kc) for a reaction can be expressed as the ratio of the product of the concentrations of the products to the product of the concentrations of the reactants. Chemistry a study of matter 6.33 answer key
where [A], [B], [C], and [D] are the concentrations of the reactants and products, and a, b, c, and d are their respective stoichiometric coefficients. Chemical equilibrium is a state where the concentrations