Question

hypothesize: note the yellow lines that form between molecules, which represent hydrogen bonds. what causes these h - bonds to form? (hint: look at the charged regions.)
a electrons are transferred
b neutrons repel each other
c protons move freely
d opposite partial charges attract

Explanation:

Hydrogen - bonds form due to the attraction between opposite partial charges. In a molecule, regions with partial positive and partial negative charges are created by unequal electron - sharing. These opposite partial charges attract each other to form hydrogen bonds. Electrons are not transferred as in ionic bonds (a is incorrect), neutrons do not play a role in hydrogen - bond formation (b is incorrect), and protons do not move freely in the context of hydrogen - bond formation (c is incorrect).

Answer:

D. Opposite partial charges attract