So i dont get reported or deleted. what is chemistry? if your account name is coolboy pls answer or comment

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

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Is powdered sports drink ionic or covalent ? 10pts !