Yes, only after a while though. Once the bottle or can is opened, the drink will lose its carbonation (fizz) within a few hours, even if you reclose the container. The drink itself may also spoil in just a few months, even unopened; diet drinks spoil faster than non-diet drinks.
No, non carbonated drinks do not have carbon dioxide.
Carbonated drinks give you gas and that would be painful with diverticulitis.
No
no
Carbonated water is widely used is in soft drinks.
Carbonated water is a more refreshing drink.
Carbonated drinks are absorbed faster into the body's systems. This fact is especially important to remember if you are drinking carbonated alcoholic drinks because you may become drunk faster.
Yes, in carbonated drinks.
none
In the sense that nothing can be absolutely pure... maybe.In the sense that it's a significant and deliberately included ingredient, no. Some carbonated drinks do contain phosphoric acid, but most do not.The acid that all carbonated drinks do contain is carbonic acid, since that (or more precisely the carbonate ion that it contains) is where the name "carbonated drinks" comes from.
Fizzy means containing bubbles of gas. Carbonated water and drinks contain carbon-di-oxide. That's the reason why you can see bubbles in carbonated drinks. Hence fizzy water is also called carbonated water.
There is little difference. The contents of the stomach before the drink have a far greater effect. The reason for this belief is that people tend to drink carbonated drinks more rapidly than non-carbonated.