NaCl: Al: Wax: Data and Observations: Substance | Observation of substance | Conduct as a solid?

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The expected observations below assume dissolution in water and gentle laboratory heating; actual melting observations depend on the temperature reached. NaCl (salt): White crystalline solid. Does not conduct electricity as a solid. Conducts when dissolved in water because its ions can move freely. Does not melt under gentle heating (melting point approximately 801°C). Bond: ionic. Al: Silvery-gray metallic solid. Conducts electricity as a solid. Does not dissolve in water, so conductivity when dissolved is not applicable. Does not melt under gentle heating (melting point approximately 660°C). Bond: metallic. Wax (C₂₂H₄₆): White or translucent, waxy solid. Does not conduct electricity as a solid. Does not dissolve in water and does not produce a conducting aqueous solution. Melts readily under gentle heating (pure C₂₂H₄₆ melts at approximately 44°C). Bond: covalent within molecules; weak intermolecular forces between molecules.

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NaCl: Al: Wax: Data and Observations: Substance | Observation of substance | Conduct as a solid?

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