What chemical causes the baking powder to rise?

Baking powder rises due to the release of carbon dioxide gas. This gas is produced through a chemical reaction between the components of baking powder:

* Sodium bicarbonate (baking soda): This is the base component that releases carbon dioxide.

* Acid: Baking powder contains an acidic component, such as monocalcium phosphate or sodium aluminum sulfate. This acid reacts with the baking soda to produce carbon dioxide.

* Starch: This acts as a drying agent and helps prevent the ingredients from reacting prematurely.

When the baking powder is mixed with wet ingredients, the acid reacts with the baking soda, releasing carbon dioxide gas. This gas gets trapped in the batter or dough, causing it to rise.

The reaction is sped up by heat, so the rising effect is more pronounced during baking.