Question

The fizz that comes out when a soda bottle is opened is due to a chemical change

Answer 1

The fizz that bubbles up when you crack open a can of soda is carbon dioxide gas (CO2).

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Answer 2

Explanation:

In soda water bottle, CO2 gas is dissolved in water only under pressure. As soon as the bottle is opened, the pressure inside the bottle tends to decrease the atmospheric pressure, so the solubility decreases. The dissolved gas escapes from the bottle all of a sudden resulting in fizz.