What properties of salt water make it easy to separate the salt from the water?

Salt is a non magnetic solid which makes it soluble in water. 
-hope that helps lol

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts