Exactly what is says.
What is the density, boiling point, etc of Salt vs the same things for Sodium,or Chlorine?
what does the statement "the properties of salt are different from the properties of the elements that go into making them.
2 answers
Look at Na combining with Cl2 gas to form NaCl, salt. We eat salt, a solid, but Cl2 gas is poison and you wouldn't dare eat sodium metal, a soft and very reactive metal not like salt at all.