Law of definite composition states that the elements in a given compound are always combined in the same proportion by mass. This law form the basis for the definition of a chemical compound.
Generalic, Eni. "Law of definite composition." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. 2 Apr. 2025. <https://glossary.periodni.com>.
Glossary
Periodic Table