The definite mass ratios involved in reactions suggested a convenient method for counting the number of atoms of each element participating in the reaction. These results, summarized as the laws of chemical combination, provided overwhelming, if indirect, evidence for the existence of atoms and molecules.


Principles of Modern Chemistry (7th ed., 2012) - Ch. 1 : The Atom in Modern Chemistry


The definite mass ratios involved in reactions suggested a convenient method for counting the number of atoms of each element participating in the...

The definite mass ratios involved in reactions suggested a convenient method for counting the number of atoms of each element participating in the...

The definite mass ratios involved in reactions suggested a convenient method for counting the number of atoms of each element participating in the...

The definite mass ratios involved in reactions suggested a convenient method for counting the number of atoms of each element participating in the...