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law of constant proportion?
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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 mixed ratio { by mass} and does not depend on its source and method of preparation.....
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Explanation:
sttes that in a chemical compound the elements are alwys present in a definite proportion by mass .eg: water (h2o) always constant to element hydrogen and oxygen combined in same ratio of 2:sixteen and one : 8 by mass. if 9g. of water is decomposed we get one g. of hydrogen and 8g. of oxygen
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