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C7.4 Bond Energy Calculations Sweet 2 online exercise for | Live ... - Free Printable

Educational worksheet: C7.4 Bond Energy Calculations Sweet 2 online exercise for | Live .... Download and print for classroom or home learning activities.

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a.
- H-H: 1, 436
- I-I: 1, 148
- H-I: 2, 590
- Total energy in to break bonds: 584 kJ/mol
- Total energy out to make bonds: 590 kJ/mol
- Total energy change: -6 kJ/mol
- This is an exothermic reaction.

b.
- C-H: 4, 1652
- Cl-Cl: 1, 243
- C-H: 3, 1239
- C-Cl: 1, 346
- H-Cl: 1, 432
- Total energy in to break bonds: 1895 kJ/mol
- Total energy out to make bonds: 2017 kJ/mol
- Total energy change: -122 kJ/mol
- This is an exothermic reaction.

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