а)K2O+H2O=2KOH
б)CaO+H2O=Ca(OH)2
в)CrO3+H2O=H2CrO4
г)SO2+H2O=H2SO3
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а)K2O+H2O=2KOH
б)CaO+H2O=Ca(OH)2
в)CrO3+H2O=H2CrO4
г)SO2+H2O=H2SO3