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Chapter 15
Chapter 15: Water and Aqueous Systems
| Question | Answer |
|---|---|
| What are three unique characteristics of water? | high surface tension, low vapor pressure and high boiling point. |
| What is surface tension? | the inward force or pull that tends to minimize the surface area of a liquid |
| Any substance that interfers with the hydrogen bonding and water molecules and reduces surface tension is known as what? | surfacant |
| Water that contains dissolved substances is known as what? | aqueous solution |
| What is solvation? | the process by which the possitive and negative ions of an ionic solid become surrounded by solvent molecules. |
| What is a nonelectolyte? | a compound that does not conduct an electric current in either an aqueus solution or the molten state. |
| What is an anhydrous substance? | a substance that does not contain water. |
| A substance that is used to absorb moisture and create a dry atomosphere is known as what? | a desiccant |
| What do hygroscopics do? | remove moisture from the air. |
| What is a nonelectrolyte? | a compound that does not conduct an electric current in either a aqueous solution or the molar state. |
| What is a suspension? | a mixture from which particles settle out upon standing. |
| A heterogenous mixture containing particles that range in size from 1nm to 100nm is called what? | a colloid |
| A colloidal dispersion of a liquid in a liquid is known as what? | emulsion. |
Created by:
jmhschemistry
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