Question

define 'molecules meus'
of a substance​

Answer 1

Answer:

Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance. Several methods of representing a molecule's structure.

Answer 2

Answer:

The molecular mass is the mass of a given molecule: it is measured in daltons. Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element