Essential Chemistry for IGCSE - Formulae And Equations (Section 3 - No. 39)
Which of the following equations correctly represents the reaction between magnesium and oxygen?
Mg + O -> MgO
Mg + O2 -> MgO
2Mg + O2 -> 2MgO
Mg2 + O2 -> MgO2
Explanation
The correct balanced equation is 2Mg + O2 -> 2MgO.
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