4Na + O₂ = 2Na₂O
Na₂O + H₂O = 2NaOH
3NaOH + Fe(NO₃)₃ = Fe(OH)₃ + 3NaNO₃
2Fe(OH)₃ = Fe₂O₃ + 3H₂O
Fe₂O₃ + 6HCl = 2FeCl₃ + 3H₂O
FeCl₃ + 3KOH = Fe(OH)₃ + 3KCl
2Fe(OH)₃ + 3H₂SO₄ = Fe₂(SO₄)₃ + 6H₂O
4Na + O₂ = 2Na₂O
Na₂O + H₂O = 2NaOH
3NaOH + Fe(NO₃)₃ = Fe(OH)₃ + 3NaNO₃
2Fe(OH)₃ = Fe₂O₃ + 3H₂O
Fe₂O₃ + 6HCl = 2FeCl₃ + 3H₂O
FeCl₃ + 3KOH = Fe(OH)₃ + 3KCl
2Fe(OH)₃ + 3H₂SO₄ = Fe₂(SO₄)₃ + 6H₂O