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30 September, 22:18

In the thermal decomposition of copper carbonate, the black solid left behind weights less than the original copper carbonate. Why?

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  1. 1 October, 00:56
    0
    It is so bcs of law of conservation of mass
  2. 1 October, 01:17
    0
    CuCO₃ - - - T--> CuO↓ + CO₂ ↑

    CO₂ escapes to the atmosphere (it's a gas)
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