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July 30, 2015

Homework Help: chemistry

Posted by maddy on Monday, May 14, 2012 at 6:17pm.

4 FeO(s) + O2(g) 2 Fe2O3(s)

calculate value of delta H
i have done this
4(-272.0)+0->2(-825.5)
and the products minus reactants and i got -563 but it is not right?!

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