What are the physical and chemical properties of common table salt?

PHYSICAL PROPERTIES

• Odourless, white, cubic crystals
• Hygroscopic
• Characteristic salty taste
• Melting point = 800.8 °C
• Boiling point = 1465 °C
• = 2.165 g/cm³
• Solubility at 25 °C = 35.9 g/100 g water
• Vapour pressure at 865 °C = 1 mm Hg
• Solid does not conduct electricity
• Liquid conducts electricity
• Aqueous solution conducts electricity

CHEMICAL PROPERTIES

• Does not undergo combustion
• of molten NaCl forms chlorine gas and metallic sodium

##"2NaCl(l)" → "2Na(l)" + "Cl"_2"(g)"##

• Concentrated sulfuric acid converts it to hydrogen chloride

##"2NaCl(s)" + "H"_2"SO"_4"(l)" → "Na"_2"SO"_4(s) + 2"HCl"(g)##

• Aqueous solution reacts with aqueous silver nitrate to form silver chloride

##"NaCl(aq)" + "AgNO"_3"(aq)" → "NaNO"_3"(aq)"+ "AgCl(s)"##