At a factory people force carbon dioxide in the can an seal it quickly, other wise the carbon dioxide will escape!
Magic?
As any base would. It accepts protons.
The first sales of coca cola were at Jacob's Pharmacy in Atlanta, Georgia, on May 8, 1886
Soda water is basically carbonation in water, an example is Perrier. Soda is commonly made with High Fructose Corn Syrup, which has a high amount of sugar. You should try adding a juice of some sort...