Осуществить цепочку превращений: 1) H2 -> H2S -> SO2 -> SO3 -> H2SO4 2) CuO -> H2O -> H2 -> HCL -> AgCl 3) N2 -> NH3 -> N2 -> NO -> NO2
H2+S=H2S 2H2S+3O2=2SO2+2H2O 2SO2+O2=2SO3 SO3+H2O=H2SO4 CuO+H2=Cu+H2O 2H2O=2H2+O2 H2+Cl2=2HCl HCL+AgNO3=AgCl+HNO3 N2+3H2=2NH3 4NH3+3O2=2N2+6H2O N2+O2=2NO 2NO+O2=2NO2