Chemistry, 24.08.2020 22:01 leeleelynn
Helium is an odorless, colorless gas at room temperature. It is less dense than air. That's why helium balloons float. It is a non-reactive gas, a member of the Noble gas family. Its melting point is -272.2 oC and its boiling point is -268.93 o A chemical property of Helium is?
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Helium is an odorless, colorless gas at room temperature. It is less dense than air. That's why heli...
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