Which statement best describes how electrons fill orbitals in the periodic table?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Connect the whole numbers on the periodic table to indicate what they represent?

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