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Answered


Using the bond energy values in the previous question, which molecule
releases the most energy when forming its bonds? *
H2
Cl2
Br2

bond energies:

H-H 432
CI - CI 239
Br-Br 193

i cant tell if its h2 or br2 because im not sure what the question is asking

Answer :

Hydrogen molecule is a molecule that releases the most energy when forming its bonds as compared to other molecules.

What bond needs more energy?

We know that H-H bond energy is 432 kJ mol-1, CI - CI bond energy is 239kJ mol-1 and Br-Br bond energy is 193 kJ mol-1 so from this data we can conclude that more energy is required to break the bond between hydrogen atom.

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