Ответ:
CuO + 2NaOH → Na2CuO2 + H2O
3KOH + H3PO4 = 3H2O + K3PO4
CuO + 2HNO3 → Cu(NO3)2 + H2O
H2SO4 + Ca(OH)2 = 2H2O + CaSO4
H2SO4 + Ba(OH)2 = 2H2O + BaSO4
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Ответ:
CuO + 2NaOH → Na2CuO2 + H2O
3KOH + H3PO4 = 3H2O + K3PO4
CuO + 2HNO3 → Cu(NO3)2 + H2O
H2SO4 + Ca(OH)2 = 2H2O + CaSO4
H2SO4 + Ba(OH)2 = 2H2O + BaSO4