Potassium iodide (ki) combines with mercury chloride (hgcl2) to form potassium chloride (kcl) and mercury iodide (hgi2) during a double replacement reaction.

which of the following shows the balanced chemical equation for this reaction?

The balanced chemical equation is written below.

Explanation:

Double displacement reaction is defined as the chemical reaction in which exchange of ions takes place.

The chemical equation for the reaction of potassium iodide and mercury (II) chloride follows:

By Stoichiometry of the reaction:

2 moles of potassium iodide reacts with mercury (II) chloride to produce 1 mole of mercury (II) iodide and 2 moles of potassium chloride

Hence, the balanced chemical equation is written above.