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Chapter 15

Chapter 15: Water and Aqueous Systems

QuestionAnswer
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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