Potassium Chloride Is Used as a Substitute for Sodium Chloride

Multiple Choice

Potassium chloride is used as a substitute for sodium chloride for individuals with high blood pressure. Identify the limiting reactant and determine the mass of the excess reactant remaining when 7.00 g of chlorine gas reacts with 5.00 g of potassium to form potassium chloride.

A) Potassium is the limiting reactant; 2.47 g of chlorine remain.
B) Potassium is the limiting reactant; 7.23 g of chlorine remain.
C) Chlorine is the limiting reactant; 4.64 g of potassium remain.
D) Chlorine is the limiting reactant; 2.70 g of potassium remain.
E) No limiting reagent: the reactants are present in the correct stoichiometric ratio.