Fe -> Fe(OH)2 -> Fe(OH)3 -> Fe2O3 -> FeCl3 -> Fe(NO3)3 -> Fe2O3
Fe + 2H2O = Fe(OH)2 + H2
4Fe(OH)2 + O2 + 2H2O -> 4Fe(OH)3
2Fe(OH)3 -> Fe2O3 + 3H2O
Fe2O3 + 6HCl =2 FeCl3 + 3H2O
FeCl3 + 3AgNO3 = 3AgCl + Fe(NO3)3
4Fe(NO3)3 -> 2Fe2O3 + 12NO2 + 3O2
N(+5)+1e = N(+4) 12
O(-2) -2e = O(0) 6
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Fe -> Fe(OH)2 -> Fe(OH)3 -> Fe2O3 -> FeCl3 -> Fe(NO3)3 -> Fe2O3
Fe + 2H2O = Fe(OH)2 + H2
4Fe(OH)2 + O2 + 2H2O -> 4Fe(OH)3
2Fe(OH)3 -> Fe2O3 + 3H2O
Fe2O3 + 6HCl =2 FeCl3 + 3H2O
FeCl3 + 3AgNO3 = 3AgCl + Fe(NO3)3
4Fe(NO3)3 -> 2Fe2O3 + 12NO2 + 3O2
N(+5)+1e = N(+4) 12
O(-2) -2e = O(0) 6