Study the rate law for an experimental reaction. rate=k[A]2[B] What is the order of the reaction with respect to the reactant A ? zero-order third-order half-order second-order first-order If the concentration of A is doubled and all other variables are held constant, the overall rate of the reaction decreases to one quarter the speed. quadruples in speed. doubles in speed. decreases to half the speed. does not change. The rate of the given reaction is 0.300M/s. A+3B2C What is the relative rate of change of each species in the reaction? I[A]: t[B] tC]