Define mole. What is a molar solution?

Which of the following units is not an official si unit

Consider the following multistep reaction: a b→ab(slow) a ab→a2b(fast)−−−−−−−−−−−−−−−−− 2a b→a2b(overall) based on this mechanism, determine the rate law for the overall reaction. express your answer in standard masteringchemistry format. for example, if the rate law is k[a]3[b]2 type k*[a]^3*[b]^2

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?