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August 2, 2015

Homework Help: 9th grade chem

Posted by Gabrielle on Friday, December 17, 2010 at 9:41am.

Using the following equation
Ca(s) + 2C(s) --> CaC2(s)
^ H = -62.8 kJ

CO2(g) --> C(s) + O2(g)
^ H = 393.5 kJ

CaCO3(s) + CO2 (g) --> CaC2(s) + 2 1/2O2(g)
^ H = 1538 kJ

Determine the heat of the reaction (in kJ) for: Ca(s) + C(s) + 3/2O2(g) --> CaCO3(s)

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