And what does baking soda do that baking powder doesn ... Baking soda and baking powder both contain sodium bicarbonate. Combined with an acid, either already in the baking powder or added in ...

Baking soda (also known as bicarbonate of soda) is a pure chemical compound while baking powder is a mixture of baking soda and one or more acidic ingredients, such as cream of tartar and/or sodium ...

They both contain ... ingredient in baking powder. Put another way, you can have baking soda without baking powder, but baking powder without baking soda is impossible. So: How does baking soda ...