12 Consider the reaction:

Estimate the carbon-fluorine bond energy given that the C-C bond energy is 347 kJ/mol, the C=C bond energy is 614 kJ/mol, and the F-F bond energy is 154 kJ/mol.
(A)64 kJ/mol
(B)128 kJ/mol
(C)421 kJ/mol
(D)485 kJ/mol
(E)970 kJ/mol

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統計： A(0), B(0), C(0), D(1), E(0) #3861894