Copper I and copper II oxides. These two compounds were easily prepared in my lab. Copper II oxide is very easy to make. Basic copper carbonate or Copper hydroxide will easily decompose
Copper Carbonate Basic
Equation for Decomposition of CuCO3 : Copper (II) Carbonate - YouTube
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Copper(II) Carbonate - Assignment Point
Basic Copper(II) Carbonate | Copper Chemistry Wiki | Fandom
Copper carbonate | CuCO3 | CID 14452 - PubChem
Copper(II) carbonate - Sciencemadness Wiki
Copper (II) carbonate (CuCO3) powder in a crucible #6293525
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copper carbonate Info Chemical Man | Vizag Chemicals
Extracting copper from copper(II) carbonate | Experiment | RSC Education