Question

magnesium (Mg) + Oxygen (O2)=?

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Answer 1

Answer:

      Mg        +    O2     =          MgO

Magnesium   Oxygen    Magnesium oxide

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Answer 2

MgO

Explanation:

Mg ^2+ and O2 react to form magnesium oxide.

Magnesium has valency 2 . So both form 2 MgO