Volume of a cone is 200.96 what is the height of the cone

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

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

What term describes technology that operates on an atomic level