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1 January, 10:35

Which equation is a decomposition reaction?

Li2CO3 - - Li2O + CO2

Zn + HCl - - ZnCl2 + H2

Na2O + CO2 - - Na2CO3

C6H12O6 + O2 - - CO2 + H2O

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  1. 1 January, 12:38
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    The first one is a decomposition as the reactant has three combined elements and the products are two compounds each with two elements.

    The second and third are synthesis reactions and the last is a combustion.
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