Question

In a classroom, which comparison would a teacher most likely use for describing a mole?
a cup of water and a liter of oil
a dozen eggs and a dozen jellybeans
a jar of jellybeans and a gram of salt crystals
20 marbles in a bag and 10 large ice cubes

Answer 1

a dozen eggs and a dozen jellybeans

Reason: a mole is a counting unit (like a dozen). The comparison shows the same number of different items, just as a mole means the same number of atoms/molecules of any substance.