Which of the Following Can Be a Pure Substance

question 18

Multiple Choice

Which of the following can be a pure substance?
i.Gold
ii.Air
iii.Homogenized milk
iv.Sugar completely dissolved in water
v.Ice

• A)ii and iv
• B)ii and iii
• C)i and iii
• D)i and v
• E)ii, iii, and iv

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Definitions:

Consumer Surplus

Consumer surplus is the difference between the total amount consumers are willing to pay for a good or service and the total amount they actually pay.

Producer Surplus

The difference between what producers are willing to accept for a product because of its cost of production and what they actually receive (the market price).

Economy

A system for coordinating society’s productive activities.

Producer Surplus

The excess amount that producers make from selling a product over their minimum acceptable price.