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Across 2. a compound that conducts an electric current when it is an aqueous solution or in the molten state; all ionic compounds are electrolytes, but most covalent compounds are not 3. water that contains dissolved substances 6. a process that occurs when an ionic solute dissolves; in solution, solvent molecules surround the positive and negative ions 7. a solution that conducts electricity poorly because only a fraction of the solute exists as ions 8. any substance that interferes with the hydrogen bonding between water molecules and thereby reduces surface tension; soaps are surfactants 9. dissolved particles in a solution 10. an inward force that tends to minimize the surface area of a liquid; it causes the surface to behave as if it were a thin skin 11. the colloidal dispersion of one liquid to another 13. scattering of light by particles in a colloid or suspension, which causes a beam of light to become visible 14. the dissolving medium in a solution 15. a compound that has a specific number of water molecules bound to each formula unit

Down 1. a solution in which a large portion of the solute exists as ions 4. a compound that does not conduct an electric current in aqueous solution or in the molten state 5. the chaotic movement of colloidal particles, caused by collision with particles of the solvent in which they are dispersed 8. a mixture from which some of the particles settle out slowly upon standing 12. a mixture whose particles are intermediate in size between those of a suspension and a solution