Whats the byproduct of nitric oxide

Which of the following oxides of nitrogen is the mixed anhydride of nitrous acid and nitric acid?

Is NO3- nitrite or nitrate?

Nitric oxide (NO) can be formed from nitrogen, hydrogen and oxygen in two steps. In the first step, nitrogen and hydrogen react to form ammonia:N2(g) + 3H2(g) → 2NH3(g) =ΔH−92.kJIn the second step, ammonia and oxygen react to form nitric oxide and water:4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) =ΔH−905.kJCalculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions.Round your answer to the nearest kJ.

The chemical formula of nitrous acid

Nitric oxide acts as a Question 5Select one:a.Inflammatory markerb.Histaminec.Vasoconstrictord.vasodilator.