Question

A geochemist examines a piece of metal that he found in the soil. He performs tests to identify the metal from its density, electrical conductivity, and melting point. Which statement best describes his investigation?

He is identifying the metal using physical properties only.
He is identifying the metal using chemical properties only.
He is identifying the metal using physical properties and chemical properties.
He is identifying the metal using neither physical properties or chemical properties.

Answer 1

The answer is A!

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Answer 2

The statement that best describes the investigation is "He is identifying the metal using physical properties only."

Density, electrical conductivity, and melting point are all physical properties of a substance. These properties can be observed and measured without changing the identity of the substance. Therefore, the geochemist is using physical properties to identify the metal.