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- Mar 7, 2008
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which regarding chemical reaction kinetics is incorrect?
a. rxns are accelerated by increased concentrations of reactants
b. rxns may be deccelerated by adding a catalyst
c. may be accelerated by decreasing the surface area available for the reaction.
d. may be accelerated by increasing the temp.
e. all of the above.
Ans. C.
another question:
if all of the chloride in a 5g sample of an unkown metal chloride is precipitated as AgCl2 with 70.9 ml of 0.201 M AgNO3, what is the percentage of chloride in the sample?
a. 50%
b. 20.2%
c. 1.4%
d. 10.10%
ans. B
a. rxns are accelerated by increased concentrations of reactants
b. rxns may be deccelerated by adding a catalyst
c. may be accelerated by decreasing the surface area available for the reaction.
d. may be accelerated by increasing the temp.
e. all of the above.
Ans. C.
another question:
if all of the chloride in a 5g sample of an unkown metal chloride is precipitated as AgCl2 with 70.9 ml of 0.201 M AgNO3, what is the percentage of chloride in the sample?
a. 50%
b. 20.2%
c. 1.4%
d. 10.10%
ans. B
