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Question

When potassium nitrate is heated, it decomposes into potassium nitrite and oxygen. Write a balanced equation for this reaction and add the state symbols of the reactants and products.

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Solution


The chemical reaction is a decomposition reaction. The balanced reaction is ----
2 K N O subscript 3 space left parenthesis s right parenthesis end subscript rightwards arrow 2 K N O subscript 2 space left parenthesis s right parenthesis end subscript plus space O subscript 2 space left parenthesis g right parenthesis end subscript

Decomposition reaction is a reaction in which the chemical species break up into simpler parts. Here potassium nitrate breaks up into potassium nitrite and oxygen and this reaction requires heat energy


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