решить цепочку
N2 --- NH3 --- NO --- NO2 --- HNO3---Cu(NO3)2
N2 + 3H2 = 2NH3 4NH3 + 5O2 = 4NO + 6H2O 2NO + O2 = 2NO2 4NO2 + O2 + 2H2O = 4HNO3 2HNO3 + CuO = Cu(NO3)2 + H2O