Adding salt to your driveway will invoke a colligative effect. The salt will change the freezing point of the water, causing the ice on your driveway to melt. Which substance below would melt the greatest amount of ice? 1. NaCl
2. MgCl2
3. KCI
4. C6H12O6

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.