Question: Given the following data: C 2 H 2 ( g ) + 5 2 O 2 ( g ) , 2 C O 2 (

Given the following data:
C2H2(g)+52O2(g),2CO2(g)+H2O(l),H=-1300kJ
C(s)+O2(g),CO2(g),H=-394kJ
H2(g)+12O2(g),H2O(l),H=-286kJ
calculate H for the reaction:
2C(s)+H2(g)C2H2(g)

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