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April 20, 2014

April 20, 2014

Posted by **Randolph** on Friday, December 2, 2011 at 11:36pm.

- chemistry!! -
**DrBob222**, Friday, December 2, 2011 at 11:51pmWrite the equation and balance it. Look up the delta Hf values. Then

deltaHrxn = (n*deltaHf products) - (n*deltaHf reactants).

n is the coefficient for the appropriate gas you look up. Post your work if you get stuck.

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