ElementWeight percentageNatural sampleSynthetic sampleCopper51.3551.35 – InterviewSolution

1.	ElementWeight percentageNatural sampleSynthetic sampleCopper51.3551.35Carbon9.749.74Oxygen38.9138.91From the table particularly we can prove that A) Law of conservation of mass B) Law of constant proportions C) Law of conservation of energy D) Above all
Answer» B) Law of constant proportions

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