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Answered

11. Which of the following is the percent composition of
Magnesium in Magnesium oxide (MgO)?
A. 2.5% B. 60% C. 40% D.57%​

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Answer:

B.60.3%

Explanation:

Taking just one atom of Mg and one atom of O you will get a mass of 16.0 + 24.3 = 40.3 for the unit that represents the minimum amount of magnesium oxide. 24.3/40.3 • 100 = 60.3% in mass of magnesium in it.

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Answer:

B.

Explanation:

Taking just one atom of Mg and one atom of O you will get a mass of 16.0 + 24.3 = 40.3 for the unit that represents the minimum amount of magnesium oxide. 24.3/40.3 • 100 = 60.3% in mass of magnesium in it.