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3h 34min, feb 3, 1785 y - Law of Conservation of Mass: By Lavoisier stating in a chemical reaction, matter is neither created nor destroyed.
Added to timeline:
ATOM theory
By
Camila Aviles rodriguez
21 Oct 2018
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460
Date:
3h 34min, feb 3, 1785 y
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~ 240 years ago
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