What is the balanced equation for magnesium burning in oxygen?
Answer and explanation
Correct answer: A. 2Mg + O2 -> 2MgO
- Step 1: Oxygen is diatomic and magnesium oxide is MgO. Step 2. Two atoms of oxygen need two Mg to balance. Answer: 2Mg + O2 -> 2MgO. Why not the others: The others do not balance or use a wrong formula.
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