What is the word equation for the formation of esters?

The formation of esters occurs through a chemical reaction between a carboxylic acid and an alcohol, resulting in the production of an ester and water. This reaction is known as esterification.

In the correct word equation, the carboxylic acid provides the functional group necessary for the ester, while the alcohol donates the alkyl group that combines with the acid. The reaction also involves the removal of a water molecule, which is a typical characteristic of condensation reactions.

This understanding clarifies that the other options do not accurately represent the formation of esters. For instance, the suggestion of producing carbon dioxide or salt instead of water indicates a misunderstanding of the specific reactants and products involved in the esterification process. Hence, the correct answer captures the essential components of the reaction accurately.