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Which of the following solutions will be the poorest conductor of electrical current?


A) sucrose, C12H22O11(aq)
B) sodium chloride, NaCl(aq)
C) potassium nitrate, KNO3(aq)
D) lithium hydroxide, LiOH(aq)
E) sulfuric acid, H2SO4(aq)

F) A) and C)
G) A) and E)

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Which, if any, of the following properties applies to weak acids?


A) They are strong electrolytes.
B) They are excellent conductors of electricity.
C) When dissolved in water, they do not ionize completely.
D) All of these choices are correct.
E) None of these choices is correct.

F) All of the above
G) A) and B)

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Select the classification for the following reaction. Select the classification for the following reaction.   A)  displacement B)  decomposition C)  combination D)  precipitation E)  acid-base


A) displacement
B) decomposition
C) combination
D) precipitation
E) acid-base

F) A) and B)
G) C) and E)

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Some covalent compounds dissolve in water to produce conducting solutions.

A) True
B) False

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Magnesium carbonate, MgCO3, is insoluble. Identify the spectator ions when aqueous solutions of sodium carbonate and magnesium chloride are combined.


A) Mg2+ and CO3
B) Na+ and Cl¯
C) Mg2+ and Cl¯
D) Na+ and CO3
E) None of these choices correctly identifies the spectator ions.

F) B) and D)
G) D) and E)

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