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: Copper Carbonate → Copper Oxide + Carbon Dioxide
: Zinc Carbonate → Zinc Oxide + Carbon Dioxide
===Method===
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|[[File:ThermalDecompositionDiagram.png|center|500px]]
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| style="height:20px; width:200px; text-align:left;" |
: 1. Set up the apparatus as shown in the diagram using 20g of metal carbonate in the [[Boiling Tube]].
: 2. Use a [[Clamp Stand]] to hold the [[Boiling Tube]] in place.
: 3. Place the [[Test Tube]] underwater to fill and hold upside down over the exit of the delivery tube.
: 4. Heat the metal carbonate in the [[Boiling Tube]].
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