Question

does o2 represent an atom or a molecule of oxygen
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Answer 1

Answer:

Model of molecule or diatomic oxygen , composed of two oxygen atoms bonded together . Molecule oxgyen ( O2 ) is a diatomic molecule that is composed of two oxgen atoms held together by a covalent bond . Moleculer oxgen is essential for life , as it is used for respiration by many organisms .

Explanation:

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