NH4Cl + NaOH = NH3 + H2O + NaClCaCO3 + HCl = CO2 + CaCl2 + H2OCuO + H2SO4 = CuSO4 + H2OBaCl2 + H2SO4 = BaSO4 + 2HCl
NH4Cl + NaOH = NH3 + H2O + NaCl
CaCO3 + HCl = CO2 + CaCl2 + H2O
CuO + H2SO4 = CuSO4 + H2O
BaCl2 + H2SO4 = BaSO4 + 2HCl