The general equation for the reaction of a salt of a carboxylic acid with hydrochloric acid is:

RCOOM + HCl -> RCOOH + MCl

Where:

- RCOOH is the carboxylic acid

- RCOOM is the salt of the carboxylic acid

- MCl is the metal chloride

For example, the reaction between sodium acetate (CH3COONa) and hydrochloric acid (HCl) would produce acetic acid (CH3COOH) and sodium chloride (NaCl):

CH3COONa + HCl -> CH3COOH + NaCl