Which is the most accurate description of molecules?
a. they are not pure substances.
b. they are linked together by shared electrons.
c. they are linked together by transferred electrons.
d. they are made up of 1 or more atoms of 1 or more elements.

Ageochemist 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? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.