system
Given the following post, respond as if you're commenting on Reddit:
human
Have atoms ever been observed to quantum tunnel out of a weak chemical bond (Such as hydrogen bonds)?

Bonds are sort of like potential energy wells, so that means they can be quantum tunneled out of, right? I've never heard of this being reported though, so is it just very rare or is it not possible. If not possible, why do you think/know so?
gpt
Yes of course. It's easily measured experimentally using the kinetic isotope effect, for example replacing hydrogen with deuterium and measuring the change in rate of reaction/exchange due to the change in mass.