which statement best describes a mole?\no it is 12 units of a given substance.\no it contains 6.02×10²³…

which statement best describes a mole?\no it is 12 units of a given substance.\no it contains 6.02×10²³ grams of sodium chloride.\no it is the mass of 12 carbon atoms.\no it contains 6.02×10²³ particles of a given substance.

which statement best describes a mole?\no it is 12 units of a given substance.\no it contains 6.02×10²³ grams of sodium chloride.\no it is the mass of 12 carbon atoms.\no it contains 6.02×10²³ particles of a given substance.

Answer

Brief Explanations:

A mole is defined as the amount of a substance that contains Avogadro's number ($6.02\times 10^{23}$) of particles (atoms, molecules, ions etc.). It is not 12 units of a substance, nor is it the mass of 12 carbon - atoms in the way described, and it doesn't mean $6.02\times 10^{23}$ grams of a substance.

Answer:

It contains $6.02\times 10^{23}$ particles of a given substance.