Lithium and Nitrogen React in a Combination Reaction to Produce

question 52

Multiple Choice

Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s) + (g) → N(s)
How many moles of lithium are needed to produce 0.45 mol of N when the reaction is carried out in the presence of excess nitrogen?

• A) 0.23
• B) 1.4
• C) 0.15
• D) 0.30
• E) 2.7

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Definitions:

Downward Rigidity

A situation in economics where wages or prices are resistant to decrease even in conditions where they logically should, such as during a recession.

Classical Model

An economic theory emphasizing that markets function best without government interference, focusing on long-term growth by ensuring goods and labor markets are in equilibrium.

Aggregate Supply

The sum of all products and services that enterprises in an economy expect to sell during a defined time span.

Price Level

The mean of current prices for all goods and services generated within the economy.