Baking powder and baking soda are both leavening, or rising, agents. They contain different ingredients and have different uses. Baking soda is sodium bicarbonate. Baking powder is sodium bicarbonate ...

You can't have one without the other, but they're not the same. When it comes to baking powder and baking soda, you can't have one (powder) without the other (soda). But that doesn't mean they're ...