4Fe + 3O₂ = 2Fe₂O₃
Fe₂O₃ + CO = 2FeO + CO₂
FeO + H₂SO₄ = FeSO₄ + H₂O
FeSO₄ + 2KOH = 2Fe(OH)₂ + K₂SO₄
4Fe(OH)₂ + O₂ + 2H₂O = 4Fe(OH)₃
2Fe(OH)₃+ 3H₂SO₄ = Fe₂(SO₄)₃ + 6H₂O
Fe₂(SO₄)₃ + 3Ba(NO₃)₂ = 3BaSO₄ + 2Fe(NO₃)₃
4Fe + 3O₂ = 2Fe₂O₃
Fe₂O₃ + CO = 2FeO + CO₂
FeO + H₂SO₄ = FeSO₄ + H₂O
FeSO₄ + 2KOH = 2Fe(OH)₂ + K₂SO₄
4Fe(OH)₂ + O₂ + 2H₂O = 4Fe(OH)₃
2Fe(OH)₃+ 3H₂SO₄ = Fe₂(SO₄)₃ + 6H₂O
Fe₂(SO₄)₃ + 3Ba(NO₃)₂ = 3BaSO₄ + 2Fe(NO₃)₃