Question

Costes
Q.3 Give reasons why the following are considered as chemical changes.
1. Copper carbonate on heat gives copper oxide and carbon dioxide

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Answer 1

Answer:

1) Some carbonates change colour during thermal decomposition, which means the compound breaks down into other substances when heated. Copper carbonate is green and becomes copper oxide which is black. Here's your answer !! Copper carbonate on heating dissociates to form two compounds , copper oxide and carbon dioxide .

Explanation:

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