Why do we use baking soda and vinegar to get a reaction?

When baking soda (sodium bicarbonate) and vinegar (acetic acid) are mixed, they undergo a chemical reaction to produce carbon dioxide gas. This gas causes a fizzing or bubbling reaction and creates a foam. The chemical equation for this reaction is:

NaHCO3 (sodium bicarbonate) + CH3COOH (acetic acid) → CO2 (carbon dioxide) + H2O (water) + CH3COONa (sodium acetate)

The carbon dioxide gas produced in this reaction is what causes the fizzing or bubbling effect. The sodium acetate produced is a salt that remains in the solution.

This reaction is often used in science demonstrations and experiments to illustrate chemical reactions and the production of gases. It is also used in some baking recipes to create a leavening effect, causing baked goods to rise.