What is always true of an object with a lot of mass?
a)it contains a lot of matter incorrect answer
b)it has a large volume incorrect answer
c)it has a high-density incorrect answer
d)it cannot be accurately measured

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.