State law of constant proportion
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In chemistry, the law of definite proportions, sometimes called Proust's law or the law of definite composition, 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.
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Answer:This also known as the law of “definte proportions ”
Explanation:This was given by French chemist Joseph prociot in 1799
According to this law in a chemical substance the elements are always prensent in definite proportions by mass
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