Given a reaction between an organic molecule, denoted as a, and nash, we observe the following observations. using the observations, write a rate law for the reaction. (a) the rate triples when the concentration of [a] is tripled and the concentration of [nash] is held constant. (b) the rate is decreased when the concentration of [a] is doubled and the concentration of [nash] is cut by a factor of 3. (c) the rate doubles when the concentration of [a] is cut in half and the concentration of [nash] is quadrupled. (d) the rate increases with an increase in temperature.