Will copper carbonate precipitate? Will copper sulfate precipitate?

The chemical formula is Cu2(OH)2CO3, also known as malachite, which is a precious mineral gem. It is a substance produced by the reaction of copper with oxygen, carbon dioxide and water in the air, also known as copper rust.

Heating in air will decompose into copper oxide, water and carbon dioxide. Copper rust is also basic copper carbonate. Copper reacts with O2, CO2 and H2O in the air and rusts, resulting in copper rust Cu2(OH)2CO3. Heating will produce copper oxide, carbon dioxide and H2O.

Chemical equation: Cu2 (OH) 2co3 = = 2cuo+CO2 ↑+H2O.

Physical properties: Cu2 (OH) 2co3: grass green monoclinic fibrous substance or dark green powder. The precipitate obtained from the solution turns green at first, and turns dark green after standing in the solution. Insoluble in water, soluble in acid, soluble in acid and produce corresponding copper salt. It can also be dissolved in cyanide, ammonium salt and alkali carbonate aqueous solution to form copper complex. Cu(OH)2CO3: A bright monoclinic crystal with a dark blue color or a dense crystal block. It is insoluble in water, but turns blue when it is dissolved in ammonia and hot concentrated sodium bicarbonate solution.