Question

hydrogen is react as​

Answer 1

Answer:

hydrogen

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Answer 2

Answer:

Hydrogen: reactions of elements

Hydrogen is a colourless gas, H2, that is lighter than air. Mixtures of hydrogen gas and air do not react unless ignited with a flame or spark, in which case the result is a fire or explosion with a characteristic reddish flame whose only products are water, H2O.

Explanation:

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