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Heat (in Kj/mol rxn) Absorption in This Reaction

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How much heat is absorbed in the complete reaction of 3.00 grams of SiO2 with excess carbon in the reaction below? Change in H degrees for the reaction is +624.6 kJ.

SiO2 (g) + 3C (s) >>>>>>> SiC (s) + 2CO (g)

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