Filtration, or screening, is one way to separate certain mixtures, as shown in the image. Which of these mixtures could be most easily separated by filtration? A) oil and water B) dissolved sugar and water C) sugar and salt D) flour and marbles

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