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15 agos 1794 año - 1794 - Joseph Louis Proust published the Law of Definite Proportions which states that a compound is composed of exact proportions of elements by mass regardless of how the compound was created.
Añadido al timeline:
5 ene 2018
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Atomic Theory
fecha:
15 agos 1794 año
Ahora mismo
~ 229 years ago