Why vinegar react with Coca Cola?

Vinegar (acetic acid) reacts with Coca-Cola because the cola contains a base, sodium bicarbonate. When an acid and a base react, they neutralize each other, forming water and a salt. In this case, the salt is sodium acetate.

The reaction between vinegar and Coca-Cola is a classic example of a neutralization reaction. These reactions are often used to neutralize acids or bases in chemical spills or other situations where the pH level needs to be controlled.