Ans: Vinegar reacts with baking soda to give sodium ethanoate, water along with the liberation of carbon dioxide gas. That is,
CH3COOH+NaHCO3→CH3COO¯¯¯¯Na++H2O+CO2↑
During the process, first, the bicarbonate ion present in baking soda reacts to form carbonic acid, which then suddenly decomposes to give carbon dioxide and water.