The Densities of the Coinage Metals (Copper, Silver and Gold)

question 62

Multiple Choice

The densities of the coinage metals (copper, silver and gold) are as follows: copper = 8.95 g/mL
Silver = 12.59 g/mL
Gold = 19.32 g/mL
A sample of material is found to have a mass if 33.03 grams, and have a volume of 2.624 mL. This is a sample of which of the coinage metals?

• A) copper
• B) silver
• C) gold
• D) It is not one of the coinage metals.

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Definitions:

Milton Friedman

An American economist known for his strong belief in free-market capitalism.

Permanent

Something that is meant to last or continue indefinitely without change.

Disposable Income

Refers to the sum of money available to families for spending and saving purposes once income taxes have been deducted.

APC

Average Propensity to Consume; the ratio of total consumption to total disposable income.