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17 Cards in this Set
- Front
- Back
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Hydrogen Bond |
A very strong attractive force between certain molecules, including water due to its structure, water is able to both donate and accept two hydrogen bonds per molecule |
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Water Properties |
High melting/boiling point, strong surface tension, highly cohesive, low vapor pressure |
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Intermolecular Forces |
Attraction between neighboring molecules due to opposite charges |
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Types of IMF's |
London Dispersion, Induced dipole force, dipole-dipole force, hydrogen bonding |
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Why is ice less dense than water? |
Gaps in ice's crystalline structure cause it to have unusually low density |
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Why is that good for Earth? |
Ice creates insulating layer above lake and ponds to keep them liquid during the winter |
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London Dispersion |
Acts between any pair of molecules/atoms, caused by short lived seperations of charge called temporary dipoles |
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Induced Dipole Force |
Attraction between molecules or ions w/ permanent charges or dipoles and nonpolar molecules |
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Dipole-Dipole Force |
Attraction between molecules that carry permanent dipoles Charge seperation onvolved is permanent |
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Hydrogen Bonding |
Extremely strong form of dipole-dipole force Form between N-H, O-H, of F-H bonds (extremely polar) N,O,F atoms ( extremely electronegative) |
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Solute |
What dissolves in a solvent |
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Solvent |
Substance in solution that breaks apart the solute |
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Solvation |
Process of breaking apart a solute to make a solution |
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Solubility |
The extent which a substance will dissolve in a given solvent Polar-polar Nonpolar-nonpolar |
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Strong electrolyte |
Substance that dissociates completely in soultion |
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Weak electrolyte |
Dissociates partly |
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Nonelectrolyte |
Doesn't dissociate |
