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adding baking soda to soft drink

What gas is producedd when you add baking soda to soft drinks like:
7Up, Sprite, Orange, Dr. Pepper and Coke?

Why does Dr. Pepper produce the most gas?
Why does 7Up produce the least gas?

Solution Preview

Baking soda is made up of the chemical sodium bicarbonate. The chemical formula is NaHCO3. It is made up of two ions, the sodium ion (Na+) and the bicarbonate ion (HCO3-).

When you put sodium bicarbonate into soft drinks, there is an acid-base reaction. ...

Solution Summary

It explains the reaction when adding backing soda to soft drink.