# chem

2 HNO3(aq) + Na2CO3(s) 2 NaNO3(aq) + H2O(l) + CO2(g)

(a) Calculate H° for this reaction.
kJ

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1. delta Hrxn = delta H products - delta H reactants.

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2. i don't get how to find the delta H of the products or the reactants....do i have to figure them out or look them up?

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