Arock is dropped into a graduated cylinder containing 40ml of water. the new volume is 47ml. what is the volume of the rock? a)4ml b)47ml c)7ml d)87ml e)11ml
i thibk it is 7ml am i correct ?

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