Which segments represent changes in potential energy of the molecules in the substance?
check all that apply.

a-b

b-c

c-d

d-e

e-f

I believe it is d but the letter on the chart is e so your answer option is option d.

Explanation:

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

thats a little if u want the answer just look it up on google thats what i do haha : )