Q. 24.5( 35 Votes )
Name the scientis
(a) Law of conservation of mass was given by Antoine Lavoisier in 1744. According to this law, “Matter can neither be created nor destroyed in a chemical reaction”.
(b) Law of constant proportions was given by Joseph Proust in 1799. According to this law, “a chemical compound always contains same elements in definite proportion by mass and it does not depend on the source of compound.”
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