this post was submitted on 17 May 2026
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Science Memes

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[–] stoy@lemmy.zip 12 points 20 hours ago (2 children)

This made me wonder, what is the fuel and oxidizer in a coke/mentos reaction?

To me, it seems like coke is the fuel, and mentos is the oxidizer.

Or would you say that coke is a monopropellant and the mentos is just the igniter?

[–] Zer0_F0x@lemmy.world 27 points 19 hours ago

The fuel is CO2 gas within the coke that gets rapidly released by the surface texture of the mentos.

Since the mentos doesn't interact chemically it's not an oxidizer, it interacts mechanically though so it acts as a turbopump maybe?

[–] alteredEnvoy@sopuli.xyz 11 points 19 hours ago

technically mentos is the catalyst