Which intermolecular forces contribute to the dissolution of nacl in hexane?

Hexane is nonpolar, so you would not see dipole-dipole, hydrogen-bonding, or ion-dipole interactions involving it. London dispersion forces always exist however, and the ion-ion force between Na+ and Cl- will still exist since it's not dependent on the environment. So 2 and 5 would be check-marked.

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.