Question

why has sodium chloride a high melting point?​

Answer 1

Answer:

There are strong electrostatic attractions between the positive and negative ions, and it takes a lot of heat energy to overcome them. Ionic substances all have high melting and boiling points. It takes a lot of energy to overcome the strong electrostatic forces of attraction between oppositely charged ions, so ionic compounds have high melting and boiling points. Sodium chloride is made from Na + ions and Cl - ions and has a melting point of 801°C.

Explanation:

hope this helps you....