а)H2SO4+2NaOH=Na2SO4+2H2
б)HCl+NaOH=NaCl+H2O
в)K2O+H2O=2KOH
г)SO2+H2O=H2SO3
д)SO3+2NaOH=Na2SO4+H2O
е)Na2O+SO3=Na2SO4
ж)2HNO3+CaO=Ca(NO3)2+H2O
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а)H2SO4+2NaOH=Na2SO4+2H2
б)HCl+NaOH=NaCl+H2O
в)K2O+H2O=2KOH
г)SO2+H2O=H2SO3
д)SO3+2NaOH=Na2SO4+H2O
е)Na2O+SO3=Na2SO4
ж)2HNO3+CaO=Ca(NO3)2+H2O