ChemExam2

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Author:
RubyRose
ID:
69220
Filename:
ChemExam2
Updated:
2011-03-02 20:52:02
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chemexam2
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  1. Le Chatelier's Principle
    If stress is applied to a system at equilibrium, the equilibrium will shift to relieve the stress.
  2. Any atom surrounded by only two groups has this type of molecular shape and a bond angle of what?
    • Linear
    • 180 degrees
  3. Any atom that is surrounded by three groups has this molecular shape and these bond angles.
    • trigonal planar
    • 120
  4. Any atom surrounded by four groups has this molecular shape and these bond angles.
    • tetrahedral
    • 109.5 degrees
  5. If an atom is surrounded by four groups and one lone pair, what is the molecular shape and bond angles?
    • Trigonal pyramidal
    • <109.5
  6. If there are four groups around an atom, and two of those groups are lone pairs, what is the molecular geometry and the bond angles?
    • Bent
    • <120
  7. The law of conservation of energy
    The total energy in a system does not change. Energy cannot be created or destroyed.
  8. These two substances have concentrations that can vary; therefore, they can go into mass law expressions.
    • Aqueous solutions
    • Gases
  9. The law of conservation of mass
    In a chemical reaction, the mass of the products equals the mass of the reactants.
  10. 1 Cal = ?
    1 kcal

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