Question

unit 3 chem l test 2526
which of the following would best be measured in moles?
particles of sand on the beach
number of takis in a family sized bag
number of students in this class
mass of a penny

Explanation:

A mole is a unit in chemistry used to measure the amount of a substance in terms of the number of particles (atoms, molecules, etc.). Particles of sand on the beach can be thought of in terms of a large - number of individual particles which can be measured in moles. The number of takis in a bag, number of students in a class are discrete countable items not related to chemical substances. The mass of a penny is measured in grams, not moles.

Answer:

particles of sand on the beach