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Question

Potassium chlorate (KClO3) on heating gives potassium chloride and oxygen. Write a balanced for this reaction and indicate the evolution of gas.

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Solution

2KClO3(s)+heat2KCl(s)+3O2(g)

In the chemical equation, both sides have the same number of K atoms(2), Cl atoms(2) and O atoms(6). Thus, the equation is balanced.

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