Chapter 4, Problem 32E

Calcium propionate is sometimes added to bread to retard spoilage. This compound can be prepared by the reaction of calcium carbonate, ${\text{CaCO}}_{\text{3}}$, with propionic acid, ${\text{C}}_{\text{2}}{\text{H}}_{\text{5}}{\text{CO}}_{\text{2}}\text{H}$, which has properties similar to those of acetic acid. Write the balanced equation for the formation of calcium propionate.