Ca + 2H2O = Ca(OH)2 + H2
SO3 + CO2 = не взаимодействует
BaO + H2O = Ba(OH)2
CaO + CO2 = CaCO3
SO3 + H2O = H2SO4
N2O5 + Ca(OH)2 = Ca(NO3)2 + H2O
MgO + SO3 = MgSO4
Na2O + H2O = 2NaOH
SO2 + H2O = H2SO3
2Cs + 2H2O = 2CsOH + H2
Li2O + H2O = 2LiOH
Na2O + SO2 = Na2SO3