Chemistry 1150 chapter 11

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zzto
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148325
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Chemistry 1150 chapter 11
Updated:
2012-08-29 09:00:53
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Chemistry 1150 chapter 11 ECU
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Chemistry 1150 chapter 11
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  1. Hydrogen bonding
    • NH
    • OH
    • FH
  2. Vapor Pressure Increases as
    Temperature Increases
  3. strongest to weakest bonds
    • ion-dipole
    • H bond
    • dipole-dipole
    • ion-induced dipole
    • dipole-induced dipole
    • dispersion (London)
  4. polarizability -------- down a group
    • increases
    • size increases and the larger electron clouds are further from the nucleus
  5. polarizability -------------------across a period
    decreases left to right across a period
  6. Cations ---------- than their parent atom because ------
    • are less polarizable
    • they are smaller.
  7. Anions ---------- than their parent atom because ---------------
    • are more polarizable
    • they are larger.
  8. Covalent compounds exhibit ------------ of melting and boiling points!
    a higher range
  9. More bonds means...
    more dispersion points
  10. What increases with stronger intermolecular forces
    • viscosity
    • surface tension
    • boiling point
    • melting point
  11. What decreases with stronger intermolecular forces
    vapor pressure
  12. blank are moderate while blank are weak intermolecular forces
    • weak-london dispersion, dipole dipole
    • moderate- hydrogen bonding, ion dipole
  13. Intramolecular
    • Exist within eahc molecule
    • influence chemical properties of a substance
  14. Intermolecular forces
    These forces exist between molecules.They influence the physical properties of the substance.
  15. Polarizability increases
    • down a group
    • Size increases and the larger electron clouds are further from the nucleus
  16. Polarizability decreases
    • left to right across a period
    • increasing Z shrinks atomic size and holds the electronsmore tightly
  17. Cations are more/less polarizable
    less polarizable than their parent atom because they are smaller
  18. Anions are more/less polarizable
    more polarizable than their parent atoms because they are larger
  19. Capillarity
    The tendency of a liquid in a capillary tube or absorbent material to rise or fall as a result of surface tension.
  20. the number of other particles each particle is in contact with is called its...
    • coordination number
    • -For Ions, it is the number of oppositely charged ions an ion is in contact with
  21. higher coordination number means
    more interaction and therefore stronger attractive forces holding the crystal together
  22. if the unit cell is made of spherical particles
    ---- of each corner particle is in the cube
    ---- of each particle on the face is in the cube
    -----of each particle on an edge is winin the cube
    • 1/8 of each corner particle is in the cube
    • 1/2 of each particle on the face is in the cube
    • 1/4 of each particle on an edge is winin the cube
  23. Vapor pressure
    pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system.

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