The full chemical reaction of baking soda and vinegar is as follows: Baking soda (sodium bicarbonate, NaHCO3) and vinegar (dilute acetic acid, CH3COOH) react to form three compounds such as Sodium acetate (CH3COONa), water (H2O), and carbon dioxide gas (CO2). The carbon dioxide gas released during the process is used in chemical volcanoes and other projects. The products of reaction are relatively safe.