Chem 122 Ch 16

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studysuccess
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302799
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Chem 122 Ch 16
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2015-05-17 00:55:32
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Chem 122 16
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Chem 122 Ch 16
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  1. Strong electrolytes are those which completely _____ or ____ in aqueous solutions
    disassociate or ionize
  2. The freezing point depression caused by weak acids and bases is ____ than the depression caused by similar strong acids or bases.
    less,
  3. The Ph of a weak acid solution is ___ than the Ph of a strong acid of equal normality.  This is evidence of _____ ______.
    greater Ph (lower acidity),

    incomplete ionization
  4. Dissolving salts of ___ acids or bases produces solutions which aren't neutral.
    weak
  5. The salts of acids produce ___ solutions, while the salts of bases produce ___ solutions.
    basic, acid
  6. Solutions made by mixing weak acids (or bases) and salts of the acid (or base) are said to be ____.
    buffered
  7. Solutions made from buffered solutions resist ____ according to _______ principle. 
    large Ph changes, LeChateliar's principle.
  8. Name the study of factors that affect the speed of a reaction
    Chemical Kinetics
  9. 4 factors that involve kinetics are
    • concentration,
    • temperature,
    • catalysts,
    • reactant reactivity
  10. Increasing the temperature approximately ____ the rate of kinetic energy. 
    doubles
  11. Increasing the concentration of reactants _____ the rate as does the addition of a ____.
    Increases, catalyst.
  12. A reaction coordinate diagram demonstrates the relationship between the potential energies of the reactants and products as a function of the progressive change from the reactants to the ____
    products
  13. The energy barrier between the reactants and products is called the ___ energy.
    activation
  14. The larger the energy barrier is, the ___ the rate.
    slower
  15. Addition of a catalyst effectively ___ the activation energy by changing the mechanism.
    lowers
  16. The reaction coordinate diagram suggests that reaction are ______.
    reversible.
  17. The degree to which a reaction is reversible is related to the difference in potential energies between the _____ and ____.
    reactants, products.
  18. The more exothermic the reaction is, the more the ____ are favored the less the reversible the reactions become.
    products
  19. When the rates of converting reaches ___.
    Equilibrium 
  20. exothermic reactions produce energy on the left or right side of a reaction.
    right side
  21. Endothermic reactions produce energy on the left or right side of the reaction
    left side (reactant side)
  22. _____ will adjust to offset any applied stress, according to Le Chatelier's principle.
    equalibrium

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