Answer
Balanced equation:
$2KBr(aq) + Cl_2(aq) --\gt 2KCl(aq) + Br_2(l)$
Reaction type: Single replacement.
Work Step by Step
$KBr(aq) + Cl_2(aq) --\gt KCl(aq) + Br_2(l)$
1. Balance the number of bromine atoms, by putting a "2" in front of $KBr$.
$2KBr(aq) + Cl_2(aq) --\gt KCl(aq) + Br_2(l)$
2. Balance the number of chlorine atoms, by putting a "2" in front of $KCl$
$2KBr(aq) + Cl_2(aq) --\gt 2KCl(aq) + Br_2(l)$
3. Classify the reaction.
That reaction follows the pattern of a single replacement reaction (AB + C $--\gt$ CB + A). Where one compound/element replaces another in one compound.