The reaction between bromine (Br₂) and lithium iodide (LiI) is a single displacement reaction. Here's why:

* Single Displacement Reactions: In these reactions, a more reactive element displaces a less reactive element from a compound.

* The Reaction: Bromine (Br₂) is more reactive than iodine (I₂). When bromine reacts with lithium iodide, the bromine atoms displace the iodine atoms, forming lithium bromide (LiBr) and iodine (I₂).

The balanced chemical equation is:

Br₂ + 2LiI → 2LiBr + I₂