Magnesium and Nitrogen React in a Combination Reaction to Produce

question 144

Multiple Choice

Magnesium and nitrogen react in a combination reaction to produce magnesium nitride: 3 Mg + N₂ → Mg₃N₂
In a particular experiment,a 8.33-g sample of reacts completely.The mass of Mg consumed is ________ g.

• A)7.23
• B)21.7
• C)28.9
• D)0.92
• E)13.9

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