Which sample of gas is least likely to behave ideally? a. 1 mol He(g) at 400 K, 1 atm pressure
b. 1 mol Ne(g) at 400 K, 1 atm pressure
c. 1 mol H2(g) at 400 K, 1 atm pressure
d. 1 mol O2(g) at 400 K, 1 atm pressure
d. 1mol H2O(g) at 400 K, 1 atm pressure

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

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