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6 April, 19:31

When 10g of calcium carbonate is heated, 4.4g of carbon dioxide escape out. The amount of residue left is:

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  1. 6 April, 21:17
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    The dissociation of calcium carbonate, CaCO3, to simpler compounds can be expressed as,

    CaCO3 - - > CaO + CO2

    The precipitate is CaO and its amount is calculated through the difference which will give us the answer of 5.6 g.
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