Atoms and Molecules

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Question 1 of 18

Samples of water have been sourced from a river, a tap and a rainwater harvesting tank. However, upon testing, all the samples contain hydrogen and oxygen in the ratio of 1 : 8 by mass irrespective of the source of water. Which of the following laws does this prove?

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Law of conservation of mass

Law of multiple proportions

Law of definite proportions

Law of atomic theory of matter

None of these

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