* Chlorine (Cl₂) is more reactive than Bromine (Br₂) This means chlorine has a stronger tendency to gain electrons.

* The reaction: When chlorine gas is bubbled through a calcium bromide solution, the chlorine atoms displace the bromine ions from the solution.

Here's the balanced chemical equation:

Cl₂ (g) + CaBr₂ (aq) → CaCl₂ (aq) + Br₂ (l)

Explanation:

* Chlorine (Cl₂) reacts with calcium bromide (CaBr₂) to produce calcium chloride (CaCl₂) and bromine (Br₂).

* The chlorine atoms displace the bromine ions from the calcium bromide solution, resulting in the formation of calcium chloride and liquid bromine.

Key Features of a Single Displacement Reaction:

* One element reacts with a compound.

* The more reactive element displaces a less reactive element from the compound.

* The products are a new compound and a single element.