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What is correct about chemical composition when ice becomes water?

Answer and explanation

Correct answer: The chemical composition remains the same

Melting of ice is a physical change. Both ice and liquid water have the chemical formula \(H_2O\); only the physical state changes from solid to liquid. Therefore, the chemical composition remains the same. Formation of oxygen or sodium chloride would require a chemical change. Exam tip: In a change of state, the composition of a substance generally remains unchanged.

Related tags

Physical ChangeChange Of StateIce And WaterChemical CompositionMatter StatesNature Of MatterSome Basic Concepts Of ChemistryChemistry

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