Question

Why does copper carbonate change its colour from green to black an heating?​

Answer 1

Answer:

This is due to the polarization of the electron cloud of the carbonate ion by the metal ion. ... The heating of copper carbonate to produce copper oxide and carbon dioxide can even be determined by observing the change of color of green copper carbonate to black colored copper oxide.

Answer 2

Answer:

Copper carbonate changes its State from green to black on heating.

Explanation:

Due to heating, the copper becomes weak resulting in new substances forming....on heating, copper carbonate gives out carbon dioxide CO2.This is also known as a chemical reaction or a chemical change.