Ответ:
CuCl2 (aq) + 2 KOH (aq) → Cu(OH)2 (s) + 2 KCl (aq)
CuO + Na2CO3 = Na2O + CuCO3
CaCO3 + 2HCl → CaCl2 + CO2 + H2O
Ba(NO3)2 (aq) + Na2SO4 (aq) → BaSO4 (s) + 2 NaNO3 (aq)
Na2O + H2O = NaOH
Al2O3 + HCl = AlCl3 + H2O
K2O + H2SO4 = K2SO4 + H2O
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Ответ:
CuCl2 (aq) + 2 KOH (aq) → Cu(OH)2 (s) + 2 KCl (aq)
CuO + Na2CO3 = Na2O + CuCO3
CaCO3 + 2HCl → CaCl2 + CO2 + H2O
Ba(NO3)2 (aq) + Na2SO4 (aq) → BaSO4 (s) + 2 NaNO3 (aq)
Na2O + H2O = NaOH
Al2O3 + HCl = AlCl3 + H2O
K2O + H2SO4 = K2SO4 + H2O