What is MOLECULES AND MOLECULAR WEIGHTS?

The term molecules in a chemical sense, means the smallest quantities of substances capable of existing in the free state, as contrasted with atoms, which are regarded as constituents of molecules and the smallest parts of matter which can participate in any chemical change. For instance, a molecule of sodium chloride is a c ombination of an atom of the metal sodium with one atom of the gas chlorine Na + Cl=NaCl and as the atomic weight of sodium is 23 and that of chlorine 35

Link to This Definition
Did you find this definition of MOLECULES AND MOLECULAR WEIGHTS helpful? You can share it by copying the code below and adding it to your blog or web page.
Definition of  MOLECULES AND MOLECULAR WEIGHTS