Question

A solid has a high to very high melting point, great hardness , and poor electrical conduction, this is an_______solid.

a. ionic
b.ionic or metallic
c.metallic
d. covalent network
e. ionic or covalent network
How do you remember all of these solids and what they do with regard to boiling point, melting point, conductivity, and bond strength?

Answer 1

A solid has a high to very high melting point, great hardness , and poor electrical conduction, this is a covalent network solid.
A network solid is a chemical compound in which the atoms are bonded by covalent bonds.

d. covalent network

Answer 2

a solid that has a high to very high melting point, great hardness, and poor electrical conduction is an : E. Ionic solid

Ionic solid consist of oppositely charge ions. One of the example of Ionic solid is salt (NaCl)

hope this helps