posted by Lauren .
Write a rate equation showing the dependence of rate in reactant concentrations for each of the following elementary reactions.
a. CS2---> CS + S
b. CH3Br + OH- --> CH3OH + Br-
Neither answer is correct. Forward reaction rates do not involve both reactants and products.
Get rid of the product terms.
A word of warning however: Chemical reactions often proceed by a multistep mechanism, in which case the overall rate cannot simply be written in terms of powers of reactant concentrations. I have misgivings about the way this subject is being taught.