Question

What type of solid materials are typically hard, have high melting points and poor electrical conductivities?

Answer 1

The choices are

I. Ionic

II. Metallic

III. Covalent-network

Answer 2

I think the answer is II and III, but I don't have access to an answer key and so I was wondering if someone could confirm either way.

Answer 3

i believe it's Ionic and covalent....

Answer 4

I don't know if that helps at all >.< it really depends on the information given...

Answer 5

Ah, yes, the answer is ionic and covalent, I got messed up because I missed the "poor electrical conductivity" part.

Answer 6

I researched it for you, I believe the answer is Ionic. Take a look at this link, it explains it well. on the diagram it shows in more detail how an ionic solid hard, has a high melting point, and is NOT a good conductor unless it's been melted (hope this helped you)

Answer 7

http://dept.sfcollege.edu/natsci/chem/chm2labs/BondTypes.pdf

Answer 8

OR you could solve it! :D

Answer 9

Unfortunately the choices are:
A. I and II only
B. I and III only
C. II and III only
D. I, II and III

Answer 10

So it's likely I and III

Answer 11

oh!! well then i say 1 and 3 given the problem.