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If iron atoms are equal but oxygen atoms are not equal in an equation, what is the equation?

Answer and explanation

Correct answer: Unbalanced

A chemical equation is balanced only when the number of atoms of every element is equal on the reactant and product sides. Equality for iron alone is insufficient. If oxygen atoms differ, the equation does not represent conservation of mass correctly and must be balanced by changing suitable coefficients, never subscripts. Precipitation and exothermicity describe other properties, not atom-count balance. Therefore option B is correct.

Related tags

ScienceClass10Balanced EquationsChemical ReactionsAtomsChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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