Metal Ores Are Isolated from Rock by Taking Advantage of Differences

question 87

Multiple Choice

Metal ores are isolated from rock by taking advantage of differences in both physical and chemical properties. Cite examples given in the textbook where differences in physical properties are used.

• A)the electrolysis of impure copper metal
• B)the addition of carbon to the iron ore blast furnace
• C)the addition of oil to a slurry of metal sulfides
• D)all of the above

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Definitions:

Long-Run Equilibrium

A situation in which all firms in a market are making zero economic profit, leading to a stable market condition where no new firms enter or exit.

Consumer Preference

The subjective tastes and preferences of consumers, which determine the demand for different goods and services.

Efficiency

The extent to which resources are used optimally to achieve the desired outcomes with minimum waste.

Partial Equilibrium

An analysis focusing on the equilibrium in a single market without considering its effects on or from other markets.