what is this difference between baking powder and baking soda
Baking soda and baking powder have some similarities, but differences can cause one to make a cake rise, while the other allows the cake to fall flat of expectations. Both baking soda and powder contain sodium bicarbonate. Baking powder, however, contains both sodium bicarbonate and cream of tartar. This means there will be differences in both taste and results. Sodium bicarbonate tends to produce carbon dioxide (CO2), when mixed with an acidic substance.