Hess's law

Started by ds2012tg
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ds2012tg

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can someone help me with this, I don't quite understand why the first reaction is flipped. thanks!!!
 

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ds2012tg said:
can someone help me with this, I don't quite understand why the first reaction is flipped. thanks!!!
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always work backwards. u want CO as a reactant and therefore flip the reaction. if u add/cancel out all the reactants and products at teh end u should get ur final equation that u are asked to find the enthalpy.
 
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