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If 6 grams magnesium combines with 4 grams oxygen to form 10 grams substance which law is shown?

Answer and explanation

Correct answer: Law of conservation of mass

The total mass of the reactants is 6 g + 4 g = 10 g, which equals the mass of the substance formed. Therefore, this illustrates the law of conservation of mass: mass is neither created nor destroyed in a chemical reaction. The law of definite proportions concerns a fixed mass ratio of elements in a compound, not simply equality of total reactant and product masses. Exam tip: if total reactant mass equals total product mass, choose the law of conservation of mass.

Related tags

ChemistryChemical CombinationConservation Of MassClass 11StoichiometryChemical LawsLaws Of Chemical CombinationSome Basic Concepts Of Chemistry

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