Question

Who discovered the Law of fixed proportion and Law of conservation of mass ? and by whom ​
Please send the ans

Answer 1

Answer:

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• In chemistry, the law of definite proportion, sometimes called Proust's law, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation. For example, oxygen makes up about 8/9 of the mass of any sample of pure water, while hydrogen makes up the remaining 1/9 of the mass. Along with the law of multiple proportions, the law of definite proportions forms the basis of stoichiometry
• The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants

Answer 2

Answer:

Law of fixed proportion was discovered by Proust in 1799.

Law of conservation of mass was discovered By Antoine Laurent Lavoisier in 1774.

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