Fe不足:Fe + 4 HNO3(稀) = Fe(NO3)3 + NO↑ + 2 H2O
Fe过量:3 Fe + 8 HNO3(稀) = 3 Fe(NO3)2 + 2 NO↑ + 4 H2O
Fe不足:Fe + 6 HNO3(浓) ==△== Fe(NO3)3 + 3NO2↑ + 3 H2O
Fe过量:Fe + 4 HNO3(浓) ==△== Fe(NO3)2 + 2 NO2↑ + 2 H2O
Fe不足:Fe + 4 HNO3(稀) = Fe(NO3)3 + NO↑ + 2 H2O
Fe过量:3 Fe + 8 HNO3(稀) = 3 Fe(NO3)2 + 2 NO↑ + 4 H2O
Fe不足:Fe + 6 HNO3(浓) ==△== Fe(NO3)3 + 3NO2↑ + 3 H2O
Fe过量:Fe + 4 HNO3(浓) ==△== Fe(NO3)2 + 2 NO2↑ + 2 H2O