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If you have a jar with oxygen and hydrogen inside, I'm interested in knowing what variables are most important to ensure that the mixture will become water (if that was the goal) or hydrogen peroxide, but not both. I understand that at room temperature those two gases will not react to form anything, so the question is more about the details of how the mixture could be manipulated to take a route to become X vs Y.

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  • $\begingroup$ The idea of direct synthesis of H2O2 from elements is interesting. But with exception of reaction of residual molecules or atoms in high vacuum, I doubt it has any significance. $\endgroup$
    – Poutnik
    Commented Dec 27, 2022 at 16:20
  • $\begingroup$ Here is an article claiming that fuel cells could produce either. In biology, there are catalases that degrade unwanted hydrogen peroxide. $\endgroup$
    – Karsten
    Commented Dec 27, 2022 at 17:34

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