Can RC cola and Mentos explode?

Yes, RC Cola and Mentos can explode.

Mixing RC Cola (or other carbonated sodas) and Mentos causes an eruption or spray of soda from the bottle due to a rapid release of carbon dioxide gas. Mentos candies contain a gelatin-based coating, which provides numerous nucleation sites for the dissolved CO2 gas to rapidly form bubbles, leading to a sudden release of gas and liquid from the bottle. This results in a spectacular eruption or spray of soda.