[ELI5] Why is CO2, as opposed to other inert gases, the primary and seemingly only gas used to make soda?

Question

[ELI5] Why is CO2, as opposed to other inert gases, the primary and seemingly only gas used to make soda?

In: 3

Answer 1

You don’t want it to be inert, it needs to react with water to be „trapped“ in it. It also increases acidity. Which of those aspects is more important is up for debate and taste.