Which of these describes a Mole in Chemistry? A. A counting term for substances
B. The Molar mass of substance in grams
C. 6.02 x 10^23
D. All of the above describe a mole

D. All of the above describe a mole

Explanation:

Mole is the unit for amount of substance. It is used for describing large number of particles.

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number of particles.

For example: 1 mole of Na atom will weigh 23 grams and contains atoms.

Thus all the above describes a mole.

c. orbital shape i hope this is correct