Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Which is the
correct ionic equation for the dissociation of Mg(NO3)2 when it dissolves in
water? a. | Mg(NO3)2 à Mg + 3
NO3 | c. | Mg(NO3)2 à Mg+2 + 2
NO3- | b. | Mg(NO3)2 à Mg+2 +
(NO3)2-2 | d. | Mg(NO3)2 à Mg +
NO3- | | | | |
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2.
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Which is the
correct net ionic equation for the reaction between
Pb(C2H3O2)2 + AlCl3? a. | Pb+2 + Al+3
à
PbAl | c. | Pb+2 + 2Cl-
à
PbCl2 | b. | 3 Pb+2 + 2 Al+3 à
Pb3Al2 | d. | 3Pb+2 +
6Cl- à 3PbCl2 | | | | |
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3.
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When a system is
at equilibrium, which observation is most likely? a. | an increase in the amount of product | c. | the equilibrium constant changes | b. | a decrease in the amount of
product | d. | no change in the
amount | | | | |
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4.
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One
mole of Lithium contains a. | One atom | b. | One atom of each
isotope of lithium | c. | Avogadro’s number of Li atoms | d. | Enough atoms to
have a mass of one gram | e. | None of these | | |
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