State the law of constant proportion and name the scientist who proposed this law. short ans plz
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The Law of Constant Composition, discovered by Joseph Proust.
Law of constant proportion states that a chemical compound always contains exactly the same proportion of elements by mass.
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The Law of Constant Composition, discovered by Joseph Proust, is also known as the Law of Definite Proportions. It is different from the Law of Multiple Proportions although both stem from Lavoisier's Law of Conservation of Mass. The French chemist Joseph Proust stated this law the following way: "A chemical compound always contains the same elements combined together in the same proportion by mass
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