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gladu [14]
4 years ago
6

How do you know which to pick?

Chemistry
1 answer:
mamaluj [8]4 years ago
8 0

Answer:

\boxed{\text{(C)}}

Explanation:

The solid consists of positive and negative ions, so it is an ionic solid.

Ionic solids are brittle, usually water-soluble, and poor thermal conductors as solids. Thus, the correct answer is \boxed{\textbf{(C)}}.

(A) is wrong. It describes a covalent solid, which is soft and always a poor conductor.

(B) is wrong. It describes a covalent solid, which is also low-melting.

(D) is wrong. It describes a metal, and a metal does not contain negative ions.

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