Magnesium and Nitrogen React in a Combination Reaction to Produce

question 101

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 N₂ 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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Definitions:

Marginal Social Cost

The total cost to society of producing an additional unit of a good or service, taking into account both private costs and any externalities.

Private Marginal Cost

The cost incurred by a firm or individual for producing one additional unit of a good or service, not including external costs.

Traffic Congestion

Refers to the situation where there are more vehicles than the road can accommodate, leading to slower speeds, longer trip times, and increased vehicular queuing.

Marginal Social Cost

The total cost incurred by society when the production of a good or service is increased by one additional unit, including both private and external costs.