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In which example will the concept of mixture apply instead of a combination law?

Answer and explanation

Correct answer: Changing the amount of sugar in tea

Sugar dissolved in tea forms a mixture, and its amount can be varied according to choice. Hence, the composition is not fixed. In contrast, pure \(CO_2\) has a fixed ratio of carbon and oxygen; comparing CO and \(CO_2\) relates to the law of multiple proportions, while equal total mass in a closed vessel illustrates the law of conservation of mass. Exam tip: variable composition is a key feature of a mixture.

Related tags

MixturesChemical Combination LawsVariable CompositionFixed CompositionClass 11 ChemistryLaws Of Chemical CombinationSome Basic Concepts Of ChemistryChemistry

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