Answer :
The mole is appropriate only for counting things that are very small.
One mole is a very large number of something and a molecule of water is much smaller than a grain of sand. Hence, A, C and D are correct.
What are moles?
A mole is defined as 6.02214076 × [tex]10^{23}[/tex]of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
The mole is appropriate only for counting things that are very small.
One mole is a very large number of something and a molecule of water is much smaller than a grain of sand.
Hence, A, C and D are correct.
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