What Would Be Added If An Acid Is Present In The Baked Item And Is A Chemical Method Of Leavening?

What Would Be Added If An Acid Is Present In The Baked Item And Is A Chemical Method Of Leavening? Acid is added along with baking soda to aid in leavening, because high amounts of baking soda are needed to produce sufficient carbon dioxide for leavening, which cause discoloration and bad flavor. The added acid