Baking powder from your kitchen fizzes when you put it into vinegar?

Yes, that's absolutely correct! Baking powder fizzes when you put it in vinegar. Here's why:

* Baking powder contains sodium bicarbonate (baking soda), which is a base.

* Vinegar is acidic.

* When an acid and a base react, they produce carbon dioxide gas, which is what causes the fizzing.

This reaction is similar to what happens when you bake with baking powder. The moisture and slight acidity in the batter activate the baking powder, releasing carbon dioxide gas that makes the cake or bread rise.