Question

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$tate the constant law of proportion.

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Answer 1

Law of constant proportion states that a chemical compound always contains exactly the same proportion of elements by mass.

For a given unique chemical compound, its elemental composition is same for any sample that exists.

Answer 2

Explanation:

In chemistry, the law of definite proportion, 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. 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.