1) CaO + H₂O = Ca(OH)₂
2) CaO + 2HCl = CaCl₂ + H₂O
3) CuO + 2HCl = CuCl₂ + H₂O
4) 2HCl + Zn(OH)₂ = ZnCl₂ + H₂O
5) HCl + NaOH = NaCl + H₂O
6) Zn(OH)₂ + 2NaOH = Na₂[Zn(OH)₄]
7) Zn(OH)₂ = ZnO + H₂O
1) CaO + H₂O = Ca(OH)₂
2) CaO + 2HCl = CaCl₂ + H₂O
3) CuO + 2HCl = CuCl₂ + H₂O
4) 2HCl + Zn(OH)₂ = ZnCl₂ + H₂O
5) HCl + NaOH = NaCl + H₂O
6) Zn(OH)₂ + 2NaOH = Na₂[Zn(OH)₄]
7) Zn(OH)₂ = ZnO + H₂O