()
the equation for the reaction can be shown as:
hh
h-c-0-0-h
+ 30=
0
2
0=c=o
+ 3h-o-h
hh
bond
bond energy in
kj per mole
413
347
c-h
c-c
c-o
c=0
o-h
o=0
358
799
467
495
use the bond energies to calculate the overall energy change for this
reaction.
overall energy change =

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