Ductile metallic properties solid at high temperatures inorganic compound good conductor of electricity based on the provided chemical and physical properties of the unknown substance. it would be most useful as a(n)

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.

sure im new too!

explanation:

i think it's letter a.