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CH 10 Solid and Liquids

  1. What is the periodic trend for elctronegativity?
    Electronegativity increases across groups from left to right and up a period.
  2. What is the EN range difference for a non-polar covalent bond?
    0 - 0.4
  3. What is the EN range difference for a polar covalent bond?
    0.4 - 1.8
  4. What is the EN range difference for an ionic bond?
    anything > 1.8
  5. The octet rule in VSEPR theory can be broken by which elelments?
    Anything in period 3 or higher becasue elements in period 3 or higher have access to the d-subshell (the transition metal block).
  6. Although the EN's on a molecule are going in equal and opposite directions, what specifically will make that molecule polar and not non-polar?
    A lone pair of electrons on the central atom/element
  7. What attractive forces are in polar molecules?
    dipole-dipole
  8. What attractive forces are in nonpolar covalent compunds?
    dispersion forces
  9. What are the requirements for a hydrogen bond?
    molecule#1 must have a lone pair of electrons while molecule#2 must have a partial positive hydrogen polar bond.
  10. List the types of bonds from strongest to weakest.
    From stongest to weakest ionic bonds, covalent bonds, intermolecular forces.
  11. List the intermolecular attactive forces from stongest to weakest.
    From strongest to weakest hydrogen bond, polar covalent, non-polar covalent
  12. What is the attractive force between BrF?
    dipole-dipole
  13. What is the attractive force between KCl?
    Ionic
  14. What is the attractive force between CCl4?
    Dispersion
  15. What is the attractive force between NF3?
    dipole-dipole
  16. What is the attractive force between Cl2?
    Dispersion
  17. Is the following diagram a heating curve or cooling curve?

    Image Upload 2
    Heating curve.
  18. Is the following diagram a heating curve or cooling curve?

    Image Upload 4
    Cooling curve
  19. What is a physical change of state? Can you describe molecule movement during different states and what actions are taking place during transition between states.
    A physical change of state is an observed change without a change in composition of the same molecule. The following diagram descibes molecule motion and type of action from one state to another.

    Image Upload 6
Author
Anonymous
ID
50064
Card Set
CH 10 Solid and Liquids
Description
Review of CH 10 material for test
Updated

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