Does salt change into a different matter?

Question

i.e. does it melt at high temperatures?

does it freeze?

Answer 1

Yes, table salt (sodium chloride) will melt at high temperatures, specifically at 801 °C.  It will also "freeze" back into a solid at that same temperature if it is cooling down from some higher temperature.

Answer 2

Salt is solid, meaning salt crystals are technically frozen salt. It melts at 800 degrees celcius. If salt is added to ice, it lowers the temperature of the ice. Solid salt dissolves in water and forms positive Sodium and negative Chlorine ions. Salt does not react with most chemicals, but Silver nitrate will turn it into Silver chloride and Sodium nitrate. This is one of the ways to test for salt.

Answer 3

salt is a general term, there are a lot of compounds that can be considered as a salt, sodium chloride (table salt, is the most common). They are mostly consist of a metallic element and a halide or other functional groups like nitrate, carbonate and others, so it depends on the salt composition