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4 September, 17:40

Which of the following is a decomposition reaction?

BaO + H2O → Ba (OH) 2

CH4 + O2 → CO2 + H2O

CaO + CO2 → CaCO3

PbCO3 → PbO + CO2

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  1. 4 September, 20:26
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    PbCO3 → PbO + CO2

    Explanation:

    Decomposition reaction involves the breakdown of a single large chemical compound into two or more smaller ones.

    PbCO3 → PbO + CO2

    From the above equation, we can clearly see that PbCO3 breaks down to form PbO and CO2
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