Can you use baking powered instead of soda?

No, you cannot use baking powder instead of baking soda. Baking powder is a mixture of baking soda, an acid, and a drying agent. When baking powder is mixed with a liquid, the acid reacts with the baking soda to release carbon dioxide gas, which causes the batter or dough to rise. Baking soda is a base and does not react with acids to produce carbon dioxide gas. Therefore, baking soda cannot be used as a substitute for baking powder.