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21 Cards in this Set
- Front
- Back
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forces that occur between molecules
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intermolecular forces
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when dipole moments moments line up with opposite charges to attract to each other
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dipole-dipole attraction
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the strongest dipole-dipole moment
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hydrogen bonding
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forces that exist among noble gas atoms and non polar molecules are
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London dispersion forces
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normal boiling point
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100 Celcius
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The Energy required to melt one mol of a substance
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molar heat of fusion
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the energy required to heat 1 mol of a liquid to vapor
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molar heat of vaporization
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the process of a liquid becoming a gas
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vaporization
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the process by which vapor molecules form a liquid
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condensation
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the pressure of vapor present at an equilibrium
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vapor pressure
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what is used to measure vapor pressure
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barometer
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The vapor pressure of a liquid at a given temperature is determined by the ______________ ______ that act among a molecule
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intermolecular forces
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Liquids that relatively large intermolecular forces are ___ in vapor pressure
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low
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the greater the elevation the _____ the boiling point is
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lower
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what are the 3 types of crystalline solids
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Ionic, Molecular, and Atomic
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ionic solids have ____ melting points
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high
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Molecular solids melt at ___ temperatures because the bonds are ____
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low, weak
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a substance that contains a mixture of elements and has metallic properties
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alloy
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what are the two common types of alloys
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substitutional alloy and interstital alloy
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when some of the host alloys are replaced by other metal atoms of similar sizes
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substitutional alloy
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when some of the holes among the closely packed metal atoms are occupied by atoms much smaller than the host atoms
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interstitial alloy
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