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In a closed system, the total mass of the products is 30 g, and the total mass of the reactants is also 30 g. Which law does this demonstrate?

Answer and explanation

Correct answer: Law of conservation of mass

The correct answer is B, the law of conservation of mass. In a closed system, the total mass remains unchanged during a chemical reaction; here both totals are 30 g.

Related tags

ChemistryLaws Of Chemical CombinationConservation Of MassSome Basic Concepts Of ChemistryClass 11 Mcq

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