Question

A chemical equilibrium occurs when the: -mass of the products is different than the mass of the reactants. -concentration of the products equals the concentration of the reactants. -number of molecules of the products equals the number of molecules of the reactants. -rate of the forward reaction equals the rate of the reverse reaction.

Answer 1

rate of the forward reaction equals the rate of the reverse reaction

Step-by-step explanation:

Chemical equilibrium is defined as a state in a chemical reaction in which the rate of the forward reaction equals the rate of the reverse reaction. Since the opposing reactions are occurring at the same rate, the concentrations of the reactants and products involved will not change. Although the concentrations are unchanged, it does not necessarily mean that the concentration of the products equals the concentration of the products. The other conditions are also not guaranteed as a result of a chemical equilibrium, nor do they cause a state of chemical equilibrium to occur. The defining characteristic of chemical equilibrium is that the rates of the forward and reverse reactions are equal, and the concentrations of the reactants and products remain constant.