#O_2# and #H_2# are the same gas at what temperature?

1 Answer
Meave60
Dec 17, 2016

They cannot be the same gas at any temperature.

Explanation:

#"O"_2"# and #"H"_2"# are pure substances. They are diatomic elements and will never be the same gas at any temperature. They can chemically combine with one another to form the compound water, #"H"_2"O"#, but that is a compound with very different properties compared to #"O"_2"# and #"H"_2"#.

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