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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.
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He is identifying the metal using physical properties only.
Density, electrical conductivity, and melting point are physical properties (they can be measured without changing the substance's chemical identity).
Density, electrical conductivity, and melting point are physical properties (they can be measured without changing the substance's chemical identity).
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