What is the result of mixing a water molecule and an oxygen molecule?

Two things that biomedical has invented or innvated

Can someone me with 6 to 10 plz this is for masteries test.

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