The APsolute RecAP: Chemistry Edition - Episode 51: Types of Solids and Their Properties
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Sitting in your room, you might have salted peanuts as a snack, a pencil, tea with sugar and you listen to this episode with earphones in (0:31). Sodium chloride, sugar, graphite and copper represent four types of solids. Sodium chloride is an ionic solid with low vapor pressure, high melting points and high boiling points, because of the strong attractive forces. Sugar is a molecular compound with low melting points due to weak IMFs (1:22). Graphite is an example of a network covalent solid (5:29), which generally have high melting points. Copper is representative of a metallic solid, which are good conductors of heat (6:44), ductile and malleable (7:06). Homogenous mixtures of metals are alloys (7:21).
Which of the following could be the identity of a solid that exhibits the following properties: it melts at 2973°C; it doesn't conduct electricity as a solid nor as a liquid.
A. ionic B. covalent C. covalent network D. metallic
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