Question

what is hydrogen and helium mixture?

who is more reactive?​

Answer 1

Hydreliox is an exotic breathing gas mixture of helium, oxygen and hydrogen. For the Hydra VIII mission at 50 atmospheres of ambient pressure, the mixture used was 49% hydrogen, 50.2% helium, and 0.8% oxygen.

Hydrogen is more reactive as each helium atom has a full valence electron shell, but each hydrogen atom only has one valence electron.

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Answer 2

$\huge \red {Answer}$

Hydreliox is an exotic breathing gas mixture of helium, oxygen and hydrogen. For the Hydra VIII mission at 50 atmospheres of ambient pressure, the mixture used was 49% hydrogen, 50.2% helium, and 0.8% oxygen.

Each helium atom has a full valence electron shell, but each hydrogen atom only has one valence electron. Explanation: ... therefore H is more reactive than He as it has an incomplete valence electron shell.

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