CAO+H2O=CA(OH)2K2O+H2O=2KOHNA2O+H2O=2NAOHLI2O+H2O=2LIOH
CaO+H2O=Ca(OH) Na2O+H2O=2NaOHK2O+H2O=2KOH2Na2O2+2H2O=4NaOH+O2 2K2O2+ 2H2O= 4KOH+ O2
Na2O+H2O=2NaOH