2Na + Cl2 -> 2NaCl (Natri Clorua)

2Fe +3Cl2 -> 2FeCl3 (Sắt III Clorua)

H2 + Cl2 -> 2HCl (Hidro Clorua)

H2 + Br2 -> 2HBr

H2 + F2 -> 2HF

2Na + Br2 -> 2NaBr

Br2 + 2NaI -> 2NaBr + I2

• Nước Clo:

Cl2 + H2O    ⇆ {\displaystyle \leftrightarrows } HCl + HClO

• Clorua vôi

Ca(OH)2 + Cl2 -> CaOCl2 + H2O

• Muối clorat:

3Cl2 + 6KOH -> 5KCl + KClO3 + 3H2O

2Al + 3Cl2 -> 2AlCl3

• Dung dịch nước Javen:

2NaOH + Cl2 -> NaCl + NaClO + H2O