Explain the difference between the rate law for a reaction and the integrated rate law for a reaction. what relationship does each kind of rate law express? check all that apply. check all that apply. the integrated rate law for a chemical reaction is a relationship between the concentration of a reactant and time. the rate law shows the relationship between the rate of a reaction and the concentrations of the reactants. the rate law for a chemical reaction is a relationship between the concentration of a reactant and time. the integrated rate law shows the relationship between the rate of a reaction and the concentrations of the reactants.