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jan 1, 1794 - Joseph Louis Proust

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The French chemist discovered that chemical compounds always combine in constant proportions (Law of Constant Composition). The law also helps us to understand that no matter how a compound is created, it is composed of exact element proportions.

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Atomic Theory

ByAshley Westering
1 Jan 2020
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jan 1, 1794
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~ 231 years ago
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