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Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1". KNO3 → KNO2 + O2

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2KNO3 -> 2KNO2 + O2. Hope this helps!

Answer: [tex]2KNO_3\rightarrow 2KNO_2+O_2[/tex]

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced equation will be:

[tex]2KNO_3\rightarrow 2KNO_2+O_2[/tex]

The atoms on reactant and product side must be same.

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