GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Decomposition of copper carbonate. A test tube with copper carbonate (CuCO3) is placed over a Bunsen burner flame. When heated, pale-green copper carbonate turns into black copper oxide (CuO) and carbon dioxide (CO2) gas. This is an example of a decomposition reaction: CuCO2 -> CuO + CO2.
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