What does vinegar and baking soda produce?

Vinegar and baking soda react together to produce carbon dioxide gas, water, and sodium acetate. The chemical reaction between vinegar (acetic acid) and baking soda (sodium bicarbonate) can be represented as follows:

CH3COOH (vinegar) + NaHCO3 (baking soda) → CO2 (carbon dioxide gas) + H2O (water) + CH3COONa (sodium acetate)

The carbon dioxide gas produced in this reaction is what causes the fizzing and bubbling effect when these two substances are mixed. This reaction is often used in baking to create a leavening effect, where the carbon dioxide gas becomes trapped in the dough and causes it to rise.