Question

CuCO3 when heated gives what ?

Answer 1

Answer:

Upon heating, copper carbonate (CuCO3, green) forms copper oxide (CuO, black) and carbon dioxide gas (CO2). Breaking one substance down into two or more substances using heat is called thermal decomposition. The formula for this reaction is: CuCO3 ---> CuO + CO2.

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Answer 2

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This is thermal decomposition .

The light green copper carbonate{CuCO3} when heated it gives copper oxide{CuO} ( a black residue) and carbon dioxide{CO2} is evolved .

Equation-

CuCO3(s) + heat → CuO(s) + CO2(g)

(green)