Neutralisation Reactions

Example: Baking Powder

Baking powder is a mixture of baking soda, an acid-producing ingredient such as tartaric acid (which comes from grapes) and starch (keeps the powder dry). When this mixture gets wet, by adding it to milk, melted butter, beaten eggs or water, the tartaric acid and baking soda react together to produce carbon dioxide. The carbon dioxide bubbles get trapped in the cake mixture and expand in the heat of the oven, making the cake rise.