Cl2 -> NaCl -> Cl2 -> HCl -> Cl2 -> AlCl3 -> AgCl
Cl2+2Na (t°)--->2NaCl
2NaCl +2H20 (đpdd có màng ngăn) ----> 2NaOH+H2+Cl2
Cl2 +H2 (a/s)---> 2HCl
6HCl + KClO3----> 3Cl2 +3H2O +KCl
2Al + 3Cl2 (t°) 2AlCl3
AlCl3 +3AgNO3 ---> Al(NO3)3 +3AgCl

Cl2 + 2NaOH --> NaCl + NaClO + H2O
2NaCl + 2H2O --> Cl2 + H2 + 2NaOH 
Cl2 + H2 --> 2HCl
4HCl + MnO2 --> MnCl2 + Cl2 + 2H2O 
3Cl2 + 2Ag --> 2AgCl3 
AlCl3 +3AgNO3 ---> Al(NO3)3 +3AgCl