It can be Malachite or Azurite
The hydrated copper carbonate is formed.
For copper or some copper alloys coins the coating is hydrated copper carbonate.
copper(II) carbonate or cupric carbonate
Sodium carbonate: Na2CO3.10H2OMagnesium sulfate: MgSO4.7H2OCopper (II) sulfate: CuSO4.xH2O, where x = 1-5
Potassium Carbonate and Copper metal
Hydrated copper carbonate I think
Hydrated copper carbonate I think
The hydrated copper carbonate is formed.
For copper or some copper alloys coins the coating is hydrated copper carbonate.
It is a chemical change because chemical reactions are involved; copper become hydrated copper carbonate.
Copper Carbonate.
During a long time a coating of green hydrated copper carbonate is formed.
copper(II) carbonate or cupric carbonate
Copper carbonate is a chemical substance, also called Cupric carbonate. The molecular formula is CuCO3. Copper carbonate decomposes at high temperatures, giving off carbon dioxide and leaving copper(II) oxide.
To dissolve the hydrated cooper carbonate or to remove this coating by erosion.
The statue of liberty is made from copper, not iron. By reactions with carbon dioxide and water green hydrated copper carbonate is formed.
Hydrated copper(II) Chloride - CuCl2.5H2O