The thermal decomposition in this case is:
CuCO3 -------------CuO + CO2
DECOMPOSITION
It decomposes to form copper oxide and carbon dioxide. It is an endothermic reaction, which means it absorbs heat (as all decomposition reactions do). This is the chemical equation of the reaction: CuCO3 ----> CuO + CO2
Copper.
Black
yes
DECOMPOSITION
CuCO3 = CuO + CO2
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It decomposes to form copper oxide and carbon dioxide. It is an endothermic reaction, which means it absorbs heat (as all decomposition reactions do). This is the chemical equation of the reaction: CuCO3 ----> CuO + CO2
Here are the equations for the thermal decomposition of copper carbonate (notice that a metal oxide is formed, just as it was with calcium carbonate): Copper carbonate → copper oxide + carbon dioxide CuCO3 → CuO + CO2
Copper.
Black
yes
Copper Carbonate when heated decomposes to give copper oxide and carbon dioxide.
CuO + CH3OH --> HCHO + Cu + H2O
Ca(ClO3)2 ---> CaCl2 + 3O2 is the balanced equation when calcium chlorate is heated.
Carbonate by itself is an ion that does not contain copper and therefore could not produce copper if heated. However, because carbonate is a negatively charged ion, no substantial number of carbonate ions can exist stably except in association with an equal number of positively charged cations to neutralize the electrical charge of the carbonate ions. If these cations are cations of copper, then copper oxide can be produced by heating the copper carbonate salt.