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i) CaCo3(s) -> CaO(g)+CO2()g {heat energy}

ii)2AgCl(s) -> 2Ag(s)+Cl2(g){light energy}

iii)2H2O(l) -> 2H2((g)+O2(g){electricity}

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Insufficient information has been supplied to enable a satisfactory answer to this question to be provided.


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