How Does Sodium Bicarbonate Baking Soda blow up a balloon containing Coca Cola?

Answer 1

Sodium bicarbonate (NaHCO3) neutralizes the acid in coca cola through the reaction:

(NaHCO3) + (H+) -> (Na+) + (H2O) +(CO2)

The generation of gas (CO2) causes the balloon to swell.

Answer 2

When sodium bicarbonate (baking soda) is mixed with an acidic ingredient like Coca Cola, a chemical reaction occurs that produces carbon dioxide gas. The gas fills the balloon, causing it to expand and "blow up." This reaction is similar to the one that occurs in baking when baking soda is used as a leavening agent.