I'm having trouble to understand this. Let's see, as far as I've read, salt in seawater is not present as NaCl molecules but in the form of dissolved (solvated) ions Na+ and Cl-. Provided that chlorine is a gas at ambient temperature, why don't these Cl- ions just evaporate (alone or together with H2O) out of the sea? I'm sure I'm getting something deep wrong, but I'm still curious. Thank you all!