Ag+ +Cl- NaCl+AgNO3==AgCl↓+NaNO3
Ba2+ +SO42- Na2SO4+BaCl2==BaSO4↓+2NaCl
Ba2+ +CO32- BaCl2+Na2CO3==BaCO3↓+2NaCl
Ca2+ +CO32- CaCl2+Na2CO3==CaCO3↓+2NaCl
H+ +OH- NaOH+HCl==NaCl+H2O
H+ +CO3 2- Na2CO3+2HCl==2NaCl+H2O+CO2↑
H+ +HCO3 - NaHCO3+HCl==NaCl+H2O+CO2↑
Cu2+ +OH- CuSO4+2NaOH==Cu(OH)2↓+Na2SO4
Fe3+ +OH- FeCl3+3NaOH==Fe(OH)3↓+3NaCl
NH4^+ + OH- NaOH+NH4Cl==NaCl+NH3↑+H2O
Mg2= +OH- MgCl2+2NaOH==Mg(OH)2↓+2NaCl
