Why does coke and mint Mentos react?

Answer 1

the caffeine, potassium benzoate, Aspartame, and CO2 gas contained in the Diet Coke, in combination with the Gelatin and gum Arabic ingredients of the Mentos, all contribute to the jet effect (Coke also works, but is less effective because there is no aspartame). The physical structure of the Mentos is the most significant cause of the eruption due to nucleation. The surface of the mint Mentos is littered with many small holes, allowing CO2 bubbles to form very rapidly and in great quantity, in turn causing the jet of foam.

Answer 2

The coke is acidic and the mentos react to the acidic.....stuff.....or whatever and :p idk...................................

Answer 3

its because of a process called nucleation

Answer 4

It makes big boom boom! ;)