H2SO4(разб.) + 2NaOH = Na2SO4 + 2H2O
CuO + H2O = Cu(OH)2(осадок
CuO + 2HCl = CuCl2 + H2O
CuO + 2NaOH + H2O = Na2[Cu(OH)4]
. CuO + H2SO4(разб.) = CuSO4 + H2O
. NaOH + HCl = NaCl + H2O
SO2 + NaOH = NaHSO3
CO2 + NaOH = NaHCO3
H2SO4(разб.) + 2NaOH = Na2SO4 + 2H2O
CuO + H2O = Cu(OH)2(осадок
CuO + 2HCl = CuCl2 + H2O
CuO + 2NaOH + H2O = Na2[Cu(OH)4]
. CuO + H2SO4(разб.) = CuSO4 + H2O
. NaOH + HCl = NaCl + H2O
SO2 + NaOH = NaHSO3
CO2 + NaOH = NaHCO3