FeSO₄+2NaOH = Fe(OH)₂↓+H₂SO₄
Fe⁺²S⁺⁶O₄⁻²+2Na⁺O⁻²H⁺ = Fe⁺²(O⁻²H⁺)₂↓+H₂⁺S⁺⁶O₄⁻²
Fe(OH)₂+2HCI = FeCl₂+2H₂O
Fe⁺²(O⁻²H⁺)₂+2H⁺CI⁻ = Fe⁺²Cl₂⁻+2H₂⁺O⁻²
Fe₂(SO₄)₃+6KOH = 3K₂SO₄ +2 Fe(OH)₃↓
Fe₂⁺³(S⁺⁶O₄⁻²)₃+6K⁺O⁻²H⁺ = 3K₂⁺S⁺⁶O₄⁻² + 2Fe⁺³(O⁻²H⁺)₃↓
Fe(OH)₃+3HCl = FeCl₃+3H₂O
Fe⁺³(O⁻²H⁺)₃+3H⁺Cl⁻ = Fe⁺³Cl₃⁻+3H₂⁺O⁻²
FeSO₄+2NaOH = Fe(OH)₂↓+H₂SO₄
Fe⁺²S⁺⁶O₄⁻²+2Na⁺O⁻²H⁺ = Fe⁺²(O⁻²H⁺)₂↓+H₂⁺S⁺⁶O₄⁻²
Fe(OH)₂+2HCI = FeCl₂+2H₂O
Fe⁺²(O⁻²H⁺)₂+2H⁺CI⁻ = Fe⁺²Cl₂⁻+2H₂⁺O⁻²
Fe₂(SO₄)₃+6KOH = 3K₂SO₄ +2 Fe(OH)₃↓
Fe₂⁺³(S⁺⁶O₄⁻²)₃+6K⁺O⁻²H⁺ = 3K₂⁺S⁺⁶O₄⁻² + 2Fe⁺³(O⁻²H⁺)₃↓
Fe(OH)₃+3HCl = FeCl₃+3H₂O
Fe⁺³(O⁻²H⁺)₃+3H⁺Cl⁻ = Fe⁺³Cl₃⁻+3H₂⁺O⁻²