a sample of oxygen is collected over water at 25 C at 626.7.0 mmHg pressure. What is the pressure of the dry gas alone? (Vapor pressure of water at 25 C= 23.8 mmHg)

Afamily is one another name for a group on the table of elements.

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

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?