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Classify the following as amorphous or c...

Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.

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Amorphous: Polyurethane, teflon, cellophane, polyvinyl chloride, fibre glass.
Crystalline: Naphthalene, benzoic acid, potassium nitrate, copper.
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Classify the following as amorphous or crystalline solids: polyurethane, naphtalene, benzoic acid, teflon, potassium nitrate, cellophane, polyvinyl chloride, fibre glass, copper.

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