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Question
Give one example of a decomposition reaction which is carried out by applying heat.
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Solution
When calcium carbonate is heated, it decomposes to give calcium oxide and carbon dioxide:
\[\ce{\underset{(Limestone)}{\underset{Calcium carbonate}{CaCO3_{(s)}}} ->[Heat][(Decomposition)] \underset{(Lime)}{\underset{Calcium carbonate}{CaO_{(s)}}}}\]
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