determine the enthalpy change for each of the reactions: (It is necessary to draw Lewis structures so you know where there may be single, double or triple bonds)   H2 +  Br2  =  2HBr   CH4 +  I2  =  CH3I +  HI   C2H4 +  3O2  =  2CO2  +  2H2O   2C2H6 +  7O2  =  4CO2  +  6H2O

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Chapter1: Chemical Foundations
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  1. determine the enthalpy change for each of the reactions: (It is necessary to draw Lewis structures so you know where there may be single, double or triple bonds)

 

H2 +  Br2  =  2HBr

 

CH4 +  I2  =  CH3I +  HI

 

C2H4 +  3O2  =  2CO2  +  2H2O

 

2C2H6 +  7O2  =  4CO2  +  6H2O

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