1)Cr₂O₃ + 3H₂O → 2Cr(OH)₃
Cr₂O₃ + 2NaOH → 2NaCrO₂ + H₂O
Cr₂O₃ + 6HCl→ 2CrCl₃ + 3H₂O
2)CrO + H₂O → Cr(OH)₂
CrO + 2NaOH → Na(CrO₂) + H₂O
CrO + 2HCl→ CrCl₂ + H₂O
3)SO₃ + H₂O → H₂SO₄
SO₃ + 2NaOH → Na₂SO₄ + H₂O
SO₃ + HCl → HSO₃Cl
4)V₂O₅ + H₂O → 2HVO₃
V₂O₅ + 6NaOH → 2Na₃VO₄ + 3H₂O
V₂O₅ + 6HCl → 2VOCl₃ + 3H₂O
1)Cr₂O₃ + 3H₂O → 2Cr(OH)₃
Cr₂O₃ + 2NaOH → 2NaCrO₂ + H₂O
Cr₂O₃ + 6HCl→ 2CrCl₃ + 3H₂O
2)CrO + H₂O → Cr(OH)₂
CrO + 2NaOH → Na(CrO₂) + H₂O
CrO + 2HCl→ CrCl₂ + H₂O
3)SO₃ + H₂O → H₂SO₄
SO₃ + 2NaOH → Na₂SO₄ + H₂O
SO₃ + HCl → HSO₃Cl
4)V₂O₅ + H₂O → 2HVO₃
V₂O₅ + 6NaOH → 2Na₃VO₄ + 3H₂O
V₂O₅ + 6HCl → 2VOCl₃ + 3H₂O