A substance that is brittle, has a high melting point, and only conducts electricity when dissolved in water is most likely a(n) __________ substance.

To melt a giant ionic lattice, __________ energy must be supplied to overcome the strong electrostatic attractions between the ions.

True or False: The strength of metallic bonding generally increases as the number of delocalized electrons per atom increases.

True or False: Pure simple molecular covalent substances, such as liquid water or molten sulfur, are generally good conductors of electricity.

True or False: While most simple molecular substances are non-conductors, some polar molecules can form ions through a reaction with water, allowing the solution to conduct.