Q. Mg+O2=MgOBalance the above Chemical equation?

A) 2Mg + O ----> 2MgO

B) 2Mg + O2 ----> 2MgO

C) 2Mg + O2 ----> MgO2

D) 2Mg + O ----> MgO2

✔ Correct Answer: 2Mg + O2 ----> 2MgO

Exam Insight

To balance the equation Mg + O2 → MgO: Place a 2 in front of Mg and MgO. The balanced equation is 2Mg + O2 → 2MgO.

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