The quiz is not timed but I need to bring my grade up in chemistry, I am pretty sure it is D but I am not 100% sure. In order for hydrogen bonding to occur in a molecule there needs to be a hydrogen bonded to a small, highly electronegative like:

A. nitrogen

B. oxygen

C. fluorine

D. All of the above

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.