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a chemical reactiona1.2 LAw OF CONSTANT PROPORTIONS |
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Answer» Thelaw of definite proportion, sometimes calledProust's laworthe law of definite composition, orlaw of constant compositionstates that a givenchemical compoundalways contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation. For exampleoxygenmakes up about8/9of the mass of any sample of purewater, whilehydrogenmakes up the remaining1/9of the mass. Along with thelaw of multiple proportions, the law of definite proportions forms the basis ofstoichiometry. |
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