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Atoms and Molecules

Atoms and Molecules > Ask Alfie
cee
Hi
Who gave the law of constant proportion?
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cee
The two laws of chemical compostion are as follows:
1. Law of conservation of mass : Mass can neither be created nor destroyed in a chemical reaction. This law was given by Lavoiser. 2. Law of constant proportion : In a chemical substance the elements are always present in constant proportions by mass. This law was given by Joseph L. Proust.
cee
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