STEVE:OK now we have a chemical reaction. The sodium bicarbonate is reacting with the citric acid to produce bubbles of gas. STEVE:That gas is carbon dioxide, which is the same as the bubbles in ...

The speed of a reaction depends on the number of collisions between molecules. The carbon dioxide forms when two key ingredients in these tablets, citric acid and baking soda (sodium bicarbonate), ...

Production of carbon dioxide from reaction of citric acid and baking soda ...