Why is it that if you take soda and mentos mix them together the mint kind of mentos that they'll make an explosion

There is a chemical reaction... thus the explosion of soda : )

Technically there is no chemical reaction and the You Tube demo shows this experiment in full detail. Carbonated drinks have CO2 (carbon dioxide) dissolved under more than atmospheric pressure. CO2 is sparingly soluble in water. When something is added to the mix that is MORE soluble (salt, sugar, etc), those substances dissolve preferentially. Something has to give so the CO2 is driven out of solution. If that comes out of solution fast enough and in a constricted space you get the You Tube in its full glory. Just for the fun of it, try this.

Pour a little carbonated drink into a glass, shake a salt shaker above. When the salt granules hit the liquid you can see small CO2 bubbles form. Sugar works the same way.

https://www.youtube.com/watch?v=NcYR4xCFydU

It's explained in this video. Turn your sound up and replay if you need to.

When soda and Mentos are mixed together, it can result in a chemical reaction that causes a fizzy explosion. This reaction occurs due to a combination of factors:

1. Surface area: Mentos candies have a rough and porous surface, which provides numerous nucleation sites where carbon dioxide bubbles can form. This increases the rate of gas release.

2. Coating: The outer layer of Mentos candies contains many microscopic pits and imperfections, acting as nuclei for carbon dioxide bubbles to rapidly form.

3. Ingredients in Mentos: Mentos candies typically contain ingredients like gelatin, gum arabic, and sugar, which lower the surface tension of soda. This reduction in surface tension enables the release of carbon dioxide gas more easily.

4. Carbonation in soda: Carbonated beverages like soda contain dissolved carbon dioxide gas under pressure. When the bottle is opened, the pressure is released, and the carbon dioxide gas begins to escape as bubbles.

When you drop Mentos into a bottle of soda, the nucleation sites on the candy's surface provide locations for the carbon dioxide gas to rapidly form bubbles. These bubbles quickly rise to the surface, resulting in a rapid release of gas. Additionally, the rough surface of Mentos candy allows the carbon dioxide bubbles to detach easily from the candy, further accelerating the reaction. As a result, the carbon dioxide gas rapidly escapes from the bottle, causing a frothy and fizzy explosion.

Please note that creating soda and Mentos explosions can be dangerous and should only be performed in a controlled and safe environment.