The ingredient in baking soda that causes baked goods to rise in the oven is sodium bicarbonate and alum or cream of tartar. Both alum and cream of tartar are acidic. Cream of tartar is used for alum free powders. Sodium bicarbonate is slightly basic.
The reaction between the two chemicals when moistened and heated produces carbon dioxide gas which causes the cake to rise as the bubbles of CO2 gas get trapped in the cake.
This is carbon dioxide as a gas.
It's not the milk alone that makes a cake rise. If the recipe includes milk it probably also contains either baking powder and/or baking soda. This combination of a base (Baking soda or Baking Powder) and an acid (milk) causes a slight chemical reaction which causes the cake to rise.
Baking Powder.
baking powder. i have no idea how it works though..
Baking powder is not a gas, but it does make a cake rise by releasing carbon dioxide into the batter through chemical reaction.
Cookie dough recipes generally call for either baking soda or baking powder, which create gas that expands and causes the dough to rise while baking.
Baking powder is a leavening agent, which is what causes the cake to rise. Too little baking powder will cause the cake to be tough and compact, and won't rise as expected.
Baking powder reduces density. The action of the baking powder produces gas that causes the product to rise, making the dough or batter less dense.
baking powder
Baking powder in a recipe helps your item rise when baking.
baking powder helps the cupcakes to rise
The thermal decomposition of baking powder. Baking powder is also known as sodium bi-carbonate or sodium hydrogen carbonate. When heted it undergoes thermal decomposition., releasing carbon dioxide in thre process. It is this release of CO2 that makes pastry rise when being baked.,
Baking soda does not rise as well as baking powder