Does the reaction between vinegar and baking soda make foam or gas?

When vinegar (acetic acid) and baking soda (sodium bicarbonate) are mixed, a chemical reaction occurs, resulting in the formation of carbon dioxide gas. This gas causes the mixture to foam up, creating a bubbly reaction. The chemical equation for this reaction is:

2CH3COOH + NaHCO3 → CH3COONa + H2O + CO2

In this reaction, acetic acid and sodium bicarbonate react to form sodium acetate, water, and carbon dioxide gas. The carbon dioxide gas is what causes the mixture to foam.