PLEASE HELP
Refer to the reactants of this synthesis reaction.

_[blank]_Mg + _[blank]_O2 → ?

What completed equation shows the product formed?

4Mg + O2 → 2Mg2O
Mg + O2 → MgO2
2Mg + O2 → 2MgO
2Mg + O2 → Mg2O2

Respuesta :

2 Mg + O₂ → 2 MgO

Explanation:

Metallic magnesium (Mg) will react with gaseous oxygen (O₂) to produce solid magnesium oxide (MgO).

2 Mg + O₂ → 2 MgO

To balance the chemical equation the number of atoms of each element entering the reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.

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