Question

Potassium nitrate=potassium nitrite+oxygen write balanced equation

Answer 1

Balanced equation for formation of potassium nitrite and oxygen from Potassium nitrate

Explanation:

• In the given reaction, the reactant is potassium nitrate ($KNO_3$) and products are potassium nitrite ($KNO_2$) and oxygen ($O_2$).
• The chemical equation involved in this reaction is as follows:

$KNO_3\rightarrow KNO_2+O_2$

• An equation is considered to be balanced only when it has the atoms involved in reaction in both the reactant part as well as the product part are same.
• When the above-given equation is examined, on the reactant side it has 1 K, 1N and 3O, whereas on the product side it contains 1K, 1N and 4O.
• As the values of oxygen are not the same in both side, the above given reaction is not balanced.
• Thus to make it balanced, some changes as shown in the following balanced equation is done

$2KNO_3\rightarrow 2KNO_2+O_2$

• When the above equation is examined, on the reactant side it has 2K, 2N and 6O, whereas on the product side it has 2K, 2N and 6O.
• As both side are equal the balanced chemical equation for the reaction given is

$2KNO_3\rightarrow 2KNO_2+O_2$

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