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In a closed container, gas and a precipitate both form during a reaction, but nothing escapes. What is the correct conclusion about mass?

Answer and explanation

Correct answer: The total mass will remain the same.

The law of conservation of mass states that matter is neither created nor destroyed in a chemical reaction. In a closed container, the gas remains inside even though it may not be visible, and the precipitate also remains inside. Their physical forms change, but the total amount of matter is conserved. Therefore option A is correct. Gas formation does not remove mass, and precipitate formation does not create extra mass.

Related tags

Conservation Of MassChemical ReactionsClosed SystemGas FormationPrecipitateChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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