Law of Multiple Proportions Definition - Chemistry Glossary

Law of Multiple Proportions Definition: Law which states that when elements combine, they do so in the ratio of small whole numbers (assuming they have the same type of chemical bonds).

Also Known As: Dalton's Law, though that term usually refers to his law of partial pressure

Examples: carbon and oxygen react to form CO or CO2, but not CO1.6

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Helmenstine, Anne Marie, Ph.D. "Law of Multiple Proportions Definition - Chemistry Glossary." ThoughtCo, Jun. 21, 2014, thoughtco.com/definition-of-law-of-multiple-proportions-605889. Helmenstine, Anne Marie, Ph.D. (2014, June 21). Law of Multiple Proportions Definition - Chemistry Glossary. Retrieved from https://www.thoughtco.com/definition-of-law-of-multiple-proportions-605889 Helmenstine, Anne Marie, Ph.D. "Law of Multiple Proportions Definition - Chemistry Glossary." ThoughtCo. https://www.thoughtco.com/definition-of-law-of-multiple-proportions-605889 (accessed January 23, 2018).