What causes a soda to go flat?

Answer by  littlelauren (42)

Soda is carbonated by means of CO2 (Carbon Dioxide) that is under pressure. When the cap is taken off or the can is opened, it allows the CO2 to be released into the atmosphere, which is what causes all the bubbles. Soda goes flat once all the CO2 has escaped.

Answer by  Amber40 (24961)

The fizz in soda is caused by co2. When you open a bottle co2 comes out of the liquid. It continue to come out leaving a flat soda behind.

Answer by  Anonymous

the fizz in soda is caused by co2. when you open a bbottle co2 comes out of the liquid. It contiune to come out leaving a flat soda behind.That means co2 has escaped. they also say that your not supposed to drink flat soda. it makes you dizzy and sick.