Lavoisier’s observations provided evidence for the Law of Definite Proportions, which states that a compound always contains the same elements in the same proportions by mass. This contributed to the development of the atomic theory and the understanding of chemical reactions.
How did Lavoisier’s observations contribute to our understanding of chemical composition?
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Lavoisier’s meticulous experiments and observations, particularly his law of conservation of mass, revolutionized chemistry by demonstrating that matter is neither created nor destroyed in chemical reactions. This fundamental principle laid the groundwork for understanding chemical composition, leading to the development of stoichiometry and the modern concept of the chemical element.