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calculate the heat of combustion for the following reactions from the standard enthalpies of formation

2H2(g) + O2(g) = 2H2O(l)
2C2H2(g) + 502(g) = 4CO2(g) + 2 H2O(l)

  • chemistry - ,

    DHfrxn = (n*DHfproducts) - (n*DHfreactants)
    Look up DHf for the material, multiply by n etc.

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