Question

explain law of conservation of mass and law of constant proportion​

Answer 1

Answer:

Law of Conservation of mass : The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed

Law of Constant proportions : The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass.

Explanation:

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Answer 2

$\large\bf\underline\red{Explanation \: :-}$

Law of conservation of mass

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

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Law of constant proportion

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. ... If we take some mass of water, 8/9 of its mass will be oxygen and 1/9 will be hydrogen.

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