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AS Assessed Practical 1 (Skill P) Which Equation is Correct? Aim The aim of this experiment is to determine which of two equations below is the correct equation of the thermal decomposition of copper carbonate (CuCO3). Equation 1: 2CuCO3(s) Cu2O(s) + 2CO2(g) + 1/2O2(g) Equation 2: CuCO3(s) CuO(s) + CO2(g) The right equation will be proved to be correct by measuring the volume of gas given off while heating the copper carbonate. To find which equation is correct we can use ideas about the mole and the volume one mole of gas occupies at standard conditions. Background Information Copper Carbonate - CuCO3 Copper (ii) trioxocarbonate (IV), it exists as basic salts and is found naturally as malachite (CuCO3.Cu(OH)2) and azurite Cu(OH)2CuCO3. It is a blue green, insoluble solid and decomposes into copper (II) and carbon (IV) oxide on heating. It is also reacts with dilute acids to produce carbon (IV) oxide. Copper - Cu Copper is a transition element....

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