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Which statement correctly describes the composition of a pure compound?

Answer and explanation

Correct answer: The percentage composition by mass of a pure compound is always the same

A pure compound has a fixed composition by mass, so its percentage composition remains the same from sample to sample. This is an implication of the law of definite proportions.

Related tags

ChemistryDefinite ProportionsLaws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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