Answer:
A mole is
  • the quantity of a substance whose mass is equal to its gram atomic mass (for elements) or gram molecular mass (compound). A mole contains about 6.02 × 1023 atoms or molecules. This number is known as Avogadro's constant.
  • a heavy stone breakwater, quay or harbour wall
  • a dark spot or bump on the skin
  • a small mammal living underground
  • a person inside a secret organisation that works for the other side
Contributor: Stupid
First answer by Stupid little genius. Last edit by Paladinsword. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 6 [recommend question].