Which statement best describes a mole? It is 12 units of a given substance.
It contains 6.02 Times. 1023 grams of sodium chloride.
It is the mass of 12 carbon atoms.
It contains 6.02 Times. 1023 particles of a given substance.

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.

Correct relationship between molecular formula and empirical formula

Find the midpoint of a segment with endpoints of 4-3i and -2+7i