A solid is very hard and has a high melting point. Neither the solid nor its melt conducts electricity. Classify the solid.
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Step 1:** Identify the characteristics of the solid mentioned in the question: - Very hard - High melting point - Does not conduct electricity in solid or molten state ** Show more…
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A solid is hard, brittle, and electrically nonconducting. Its melt (the liquid form of the substance) and an aqueous solution containing the substance conduct electricity. Classify the solid.
Both covalent-network solids and ionic solids can have melting points well in excess of room temperature, and both can be poor conductors of electricity in their pure form. However, in other ways their properties are quite different. $$ \begin{array}{l}{\text { (a) Which type of solid is more likely to dissolve in water? }} \\ {\text { (b) Which type of solid can become a considerably better }} \\ {\text { conductor of electricity via chemical substitution? }}\end{array} $$
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