They have different uses.

Baking soda and baking powder are both used in baking, but they are not interchangeable.

Baking powder is a key leavening agent in everything from pancakes to cakes, helping baked goods, breakfast treats, and more ...

Q: It seems as if every time a recipe calls for baking powder, I never get the rise I expect. I have made cakes and pound cakes that flopped with fresh-from-the-market baking powder, and they have ...