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Equation Metal Carbonate --> Metal Oxide + Carbon Dioxide Thermal decomposition 'is when a substance breaks down into simpler substances when heated, often with the help of a catalyst. It's different from a reaction because there's only one substance to start with'. I came across this information in the EDEXCEL Modular Science revision guidebook 1. Thermal decomposition is the breakdown of a substance using thermal energy, this is not a reaction. Preliminary experiment Limewater and copper carbonate were used to see if a metal carbonate beaks down to produce carbon dioxide. This is what the experiment looked like: The equation for this: CaCo3(s) --> CuO(s) + Co2 (g) This experiment was to see if carbon dioxide was produced from a metal carbonate. In this case copper carbonate was used. Two test tubes were linked together by a rubber tube, which had a glass pipe coming out of the cork that prevented any of the carbon dioxide or...

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