4. Given the following information, answer the following questions: A+BC+D Assume that the reaction is first order with respect to reactant A and second order with respect to reactant B. a. What is the rate law for this reaction: b. Based on your rate law, what would happen to the rate if you doubled only [A]? What if you doubled only [B]? What if you doubled both [A] and [B]? Explain. Hint: Explanation in words or math accepted! Double [A]: Double [B]: Double [A] and [B]