What would happen if you put Mentos and Diet Coke in your mouth?

WARNING: Do not put Mentos and Diet Coke in your mouth. This experiment can cause a violent foamy eruption that could potentially harm you.

If you were to put Mentos and Diet Coke in your mouth, the combination of the two would cause a sudden and intense chemical reaction. The aspartame in Diet Coke acts as a nucleation agent, providing surfaces for the carbon dioxide gas in the soda to rapidly form bubbles. The Mentos, which contain gelatin and gum arabic, act as surfactants, reducing the surface tension of the liquid and allowing the bubbles to form more easily and rapidly.

This combination of factors creates an explosive release of carbon dioxide gas, causing a large amount of foam to erupt from your mouth. This eruption could potentially cause choking or other injuries, and it can also be very messy and unpleasant.

It is important to avoid mixing Mentos and Diet Coke in your mouth or in any other enclosed space, as the eruption can be powerful enough to cause damage or injury.