Question

Help me I need help anyone

Answer 1

boil off water. salt residue left. just answered this q somewhere else.

the salt is the same as it was before

Answer 2

is a physical change because only the state of the matter has changed.

Physical changes can often be reversed. Allowing the water to evaporate will return the salt to a solid state.

It has not combined with the water to cause an irreversible chemical reaction.