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jan 1, 1794 - Joseph Louis Proust

Description:

Joseph Louis Proust was a French chemist who created the Law of Definite Proportions. This law states that a chemical compound will always have its base elements in a fixed ratio no matter the source or method of preparation. This law by Proust is now the principal of anylitical chemistry.

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Atomic Theory Project

ByGABRIEL SEQUEIRA
30 Oct 2018

Date:

jan 1, 1794
Now
~ 230 years ago

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