1)CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Cu(OH)2 + H2SO4 = CuSO4 + H2O
2)CaO + H2O = Ca(OH)2
Ca(OH)2 + 2HCl = CaCl2 + 2H2O
CaCl2 + H2SO4 = CaSO4 + 2HCl
1)CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Cu(OH)2 + H2SO4 = CuSO4 + H2O
2)CaO + H2O = Ca(OH)2
Ca(OH)2 + 2HCl = CaCl2 + 2H2O
CaCl2 + H2SO4 = CaSO4 + 2HCl