Chemistry · Laws of Chemical Combinations
Which of the following statements is correct about the reaction given below: 4Fe(s) + 3O2(g) → 2Fe2O3(s)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product, therefore it follows the law of conservation of mass.✓
- 2Total mass of reactants = total mass of product; therefore, the law of multiple proportions is followed.
- 3Amount of Fe2O3 can be increased by taking any one of the reactants (iron or oxygen) in excess.
- 4Amount of Fe2O3 produced will decrease if the amount of a ny one of the reactants (iron or oxygen) is taken in excess.
Correct answer
Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product, therefore it follows the law of conservation of mass.
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