What is the difference between a carboxylate and a carboxylic acid in terms of their chemical properties and reactivity towards other compounds?

A carboxylate is the ionized form of a carboxylic acid, meaning it has lost a hydrogen ion. Carboxylates are generally more stable and less reactive than carboxylic acids. Carboxylic acids are more acidic and tend to react with other compounds to form salts or esters.