Question

what is a oxygen?
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Answer 1

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Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.

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Answer 2

Answer:

Oxygen is a gas that you breath in . It's chemical formula is 02

². The gases support burning. This has is released by plant . In earth's atmosphere 22% present is oxygen