4CaO + 2Al (t)= 4Ca + Ca(AlO₂)₂
Ca + 2H₂O = Ca(OH)₂ + H₂
CaO + H₂O = Ca(OH)₂
Ca(OH)₂ + 2HNO₃ = Ca(NO₃)₂ + 2H₂O
Ca(NO₃)₂ + ZnSO₄ = CaSO₄ + Zn(NO₃)₂
2Be + O₂ = 2BeO
BeO + H₂SO₄ = BeSO₄ + H₂O
BeO + 2HCl = BeCl₂ + H₂O
BeCl₂ + 2NaOH = Be(OH)₂ + 2NaCl
Be(OH)₂ + Na₂O (t)= Na₂BeO₂ + H₂O