FeO+H2O → Fe(OH)2
SO3+H2O → H2SO4
NiO+H2O → Ni(OH)2
Li2O+H2O → 2LiOH
Ag2O+H2O → 2AgOH
P2O5+3H2O → 2H3PO4
CO2+H2O → H2CO3
CaO+H2O → Ca(OH)2
FeO+H2O → Fe(OH)2
SO3+H2O → H2SO4
NiO+H2O → Ni(OH)2
Li2O+H2O → 2LiOH
Ag2O+H2O → 2AgOH
P2O5+3H2O → 2H3PO4
CO2+H2O → H2CO3
CaO+H2O → Ca(OH)2