What sublevels are contained in the hydrogen atoms first four energy levels what orbitals are related to each?

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing

What layer of the atmosphere is directly above the troposphere?

How can one make a supersaturated solution? (apex)