The reaction between baking soda and vinegar is an example of a chemical reaction called a double displacement reaction and also a gas-forming reaction.More specifically, it's an acid-base reaction with the components:Vinegar (acetic acid) is the acidBaking soda (sodium bicarbonate) is the baseWhen they react, they neutralize each other and form carbon dioxide gas, water, and a type of salt called sodium acetate. These are usually used in science experiments like simulating the explosion of a volcano.