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Lewisham 31-10-2003 College Candidate name: Roland Lucien Ewas Ambassa Assessor: Bernice Ferdinand Science investigation for OCR coursework Chemistry coursework: TITLE What equation is right when burning when heating copper carbonate INTRODUCTION Basic copper carbonate occurs in nature as the mineral malachite (CuCO3) it can be synthesised in the laboratory regardless of its source, basic copper carbonate has the same composition (CuCO3). Copper carbonate is a green powder. When heated it decomposes to give a black colour of copper oxide and the reaction releases carbon dioxide. When it is heated, CuCO3 splits up or decomposes. When one substance splits up into two or more on heating, this is called "thermal decomposition". The carbon dioxide gas formed is lost to the air or collected, so the copper carbonate loses mass the copper oxide formed weighs less than the copper carbonate. However, the mass of copper carbonate equals the total mass of the copper oxide and carbon dioxide because the...

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