The decomposition of zinc carbonate, ZnCO3(s), into zinc oxide, ZnO(s), and CO2(g) at constant pressure req...

The decomposition of zinc carbonate, ZnCO3(s), into zinc oxide, ZnO(s), and CO2(g) at constant pressure requires the addition of 71.5 kJ of heat per mole of ZnCO3. Write a balanced thermochemical equation for the reaction and tell if it is endothermic or exothermic.

Answer:
ZnCO3(s) >> ZnO(s) + CO2(g) deltaH = - 71.5 kJ/mol
It is endothermic

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