Ответ:
BaO+H2O=Ba(OH)2
Na2O+H2O=2NaOH
H2SO4+Cu(OH)2=CuSO4+H2O
H3PO4+3NaOH=Na3PO4+3H2O
2H3PO4+3CaO=Ca3(PO4)2+3H2O
H2SO4+BaOH=BaSO4+H2O
BaCl2+K2SO4=BaSO4+2KCl
Ba(NO3)2+Na2SO4=BaSO4+2NaNO3
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Ответ:
BaO+H2O=Ba(OH)2
Na2O+H2O=2NaOH
H2SO4+Cu(OH)2=CuSO4+H2O
H3PO4+3NaOH=Na3PO4+3H2O
2H3PO4+3CaO=Ca3(PO4)2+3H2O
H2SO4+BaOH=BaSO4+H2O
BaCl2+K2SO4=BaSO4+2KCl
Ba(NO3)2+Na2SO4=BaSO4+2NaNO3