Which of these is a property of a substance that is composed of atoms that are held together by ionic bonds?
it can be shaped into wires.
it has a low melting point.
it conducts electricity when in solid form.
it conducts electricity when it is dissolved in water.

What does the symbol (–hfus) indicate in a phase change?

The arrangement of particles is most ordered in a sample of

A0.10 m aqueous solution of sodium sulfate is a better conductor of electricity than a 0.10 m aqueous solution of sodium chloride. which of the following best explains this observation? (a) sodium sulfate is more soluble in water than sodium chloride. (b) sodium sulfate has a higher molar mass than sodium chloride. (c) to prepare a given volume of 0.10 m solution, the mass of sodium sulfate needed is more than twice the mass of sodium chloride needed. (d) more moles of ions are present in a given volume of 0.10 m sodium sulfate than in the same volume of 0.10 m sodium chloride. (e) the degree of dissociation of sodium sulfate in solution is significantly greater than that of sodium chloride.