Which statement best describes a mole?
it is 12 units of a given substance.
it contains 6.02 mc001-1.jpg 1023 grams of sodium chloride.
it is the mass of 12 carbon atoms.
it contains 6.02 mc001-2.jpg 1023 particles of a given substance.

Answer : The correct option is, It contains particles of a given substance.

Explanation :

According to the mole concept, one mole of a substance contains number of particles of a given substance.

For example :

1 mole of oxygen (O) contains number of oxygen atoms

1 mole of oxygen contains number of oxygen atoms

Hence, the correct option is, It contains particles of a given substance.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.