1
Which of the following chemical equations correctly represents the burning of magnesium in air?
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- Mg(s) + O2(g) → MgO(s)
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- 2Mg(s) + O2(g) → 2MgO(s)
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- 2Mg(s) + 2O2(g) → 4MgO(l)
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- 4Mg(l) + O2(g) → 2MgO(l)