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Summary of the malachite investigation and experiments on copper compounds. malachite copper (II) carbonate (green). Heating malachite and testing the gas produced. clamp. delivery tube. Limewater (calcium hydroxide solution). malachite. heat.
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Summary of the malachite investigation and experiments on copper compounds malachite copper (II) carbonate (green)
Heating malachite and testing the gas produced clamp delivery tube Limewater (calcium hydroxide solution) malachite heat copper (II) carbonate copper (II) oxide + carbon dioxide (g) CuCO3 (s) CuO (s) + CO2 (g) Decomposition - copper (II) carbonate broken down to simpler substances
Summary of the malachite investigation and experiments on copper compounds malachite copper (II) carbonate (green) [heat] carbon dioxide copper (II) oxide (black)
Reduction of ‘heated malachite’ powder with charcoal crucible + lid mixture of charcoal and solid left after heating malachite pipeclay triangle heat copper (II) oxide (s) + carbon (s, charcoal) copper (s) + carbon dioxide (g) 2 CuO (s) + C (s, charcoal) 2 Cu (s) + CO2 (g) Copper (II) oxide is reduced to copper (oxygen removed). Carbon is oxidised to carbon dioxide (oxygen gained).
Summary of the malachite investigation and experiments on copper compounds malachite copper (II) carbonate (green) [heat] carbon dioxide copper (II) oxide (black) carbon dioxide [charcoal, heat] Copper (pink)
Reduction of copper (II) oxide by methane (start) excess methane burnt methane copper (II) oxide heat copper (II) oxide (s) + methane (g) copper (s) + carbon dioxide + water (g) 4 CuO (s) + CH4 (g) Cu (s) + CO2 (g) + 2 H2O (g) Copper (II) oxide is reduced to copper. Methane is oxidised to carbon dioxide and water.
Reduction of copper (II) oxide by methane (end) excess methane burnt methane copper copper (II) oxide (s) + methane (g) copper (s) + carbon dioxide + water (g) 4 CuO (s) + CH4 (g) Cu (s) + CO2 (g) + 2 H2O (g) Copper (II) oxide is reduced to copper. Methane is oxidised to carbon dioxide and water.
Summary of the malachite investigation and experiments on copper compounds malachite copper (II) carbonate (green) [heat] carbon dioxide copper (II) oxide (black) carbon dioxide [charcoal, heat] Copper (pink) [methane, heat] carbon dioxide + water vapour
Preparation of copper (II) sulphate beaker dilute sulphuric acid glass rod copper (II) oxide heat sulphuric acid (aq) + copper (II) oxide (s) copper (II) sulphate (aq) + water (l) H2SO4 (aq) + CuO (s) CuSO4 (aq) + H2O (l)
filter paper copper (II) oxide (s) and copper (II) sulphate (aq) mixture filter funnel evaporating dish copper (II) sulphate solution (filtrate)
Summary of the malachite investigation and experiments on copper compounds malachite copper (II) carbonate (green) [heat] carbon dioxide water [dil. sulphuric acid] copper (II) sulphate (blue) copper (II) oxide (black) carbon dioxide [charcoal, heat] Copper (pink) [methane, heat] carbon dioxide + water vapour
Preparation of copper (II) sulphate beaker dilute sulphuric acid glass rod copper (II) carbonate heat sulphuric acid (aq) + copper (II) carbonate (s) copper (II) sulphate (aq) + water (l) + carbon dioxide (g) H2SO4 (aq) + CuCO3 (s) CuSO4 (aq) + H2O (l) + CO2 (g)
filter paper copper (II) carbonate (s) and copper (II) sulphate (aq) mixture filter funnel evaporating dish copper (II) sulphate solution (filtrate)
Summary of the malachite investigation and experiments on copper compounds malachite copper (II) carbonate (green) [dil. sulphuric acid] [heat] carbon dioxide carbon dioxide, water water [dil. sulphuric acid] copper (II) sulphate (blue) copper (II) oxide (black) carbon dioxide [charcoal, heat] Copper (pink) [methane, heat] carbon dioxide + water vapour
Electrolysis of copper (II) sulphate solution graphite anode (+) graphite cathode (-) electrodes copper (II) sulphate (aq) copper (II) sulphate (aq) + water (l) copper (s) + oxygen (g) + sulphuric acid (aq) CuSO4 (aq) + H2O (l) Cu (s) + O2 (g) + H2SO4 (aq)
Summary of the malachite investigation and experiments on copper compounds malachite copper (II) carbonate (green) [dil. sulphuric acid] [heat] carbon dioxide carbon dioxide, water water [dil. sulphuric acid] copper (II) sulphate (blue) copper (II) oxide (black) carbon dioxide [charcoal, heat] [electrolysis] Copper (pink) [methane, heat] sulphuric acid, oxygen carbon dioxide + water vapour