Redox reaction (3)

Chlorine gas would react with potassium bromide solution to give bromine solution and potassium chloride solution.
The full equation of the reaction:
Cl2(g) + 2KBr(aq) → 2KCl(aq) + Br2
The ionic equation of the reaction:
Cl2(g) + 2Br-(aq) → 2Cl-(aq) + Br2(aq)
Observation: The colourless solution changes to brown.
The type of reaction is called displacement (a type of redox reaction). The exact wordings are: Chlorine gas displaces bromine from the potassium bromide solution.

2008-06-03 00:54:37 補充：
「Chlorine displaces bromine」 should NOT be written as 「chlorine replaces bromine」(as in 001 answer).
Reference: any CE textbook

Reaction bewteen chlorine gas and potassium bromide
Cl2 (g) + 2 KBr (aq) 2 KCl (aq) + Br2 (aq)


If chlorine gas is bubbled through a solution of potassium bromide, chlorine replaces bromine in the compound and elemental bromine is produced.