Question 1

Based on the solubility rules, which one of these compounds is insoluble in water?

Accepted Answer

A)   Na2SO4
B)   BaSO4
C)   CuSO4
D)   MgSO4
E)   Rb2SO4F) B) and E)
G) A) and E)

Question 2

________ is the name given for the process when a substance gains electrons during a chemical reaction.

Accepted Answer

The answer of ________ is the name given for the...

Question 3

Based on the solubility rules, which of these processes will occur if solutions of CuSO4(aq)  and BaCl2(aq)  are mixed?

Accepted Answer

A)   CuCl2 will precipitate; Ba2+ and SO42- are spectator ions.
B)   CuSO4 will precipitate; Ba2+ and Cl- are spectator ions.
C)   BaSO4 will precipitate; Cu2+ and Cl- are spectator ions.
D)   BaCl2 will precipitate; Cu2+ and SO42- are spectator ions.
E)   No precipitate will form.F) A) and B)
G) B) and D)

Question 4

What is the oxidation number of oxygen in potassium superoxide, KO2?

Accepted Answer

A)   +1
B)   0
C)   -½
D)   +½
E)   -2F) A) and B)
G) D) and E)

Question 5

Which is a strong acid?

Accepted Answer

A)   Ba(OH) 2
B)   H3PO4
C)   HC2H3O2
D)   NaCl
E)   HClO4F) All of the above
G) B) and E)

Question 6

Write a short definition for an Arrhenius acid.

Accepted Answer

An Arrhenius acid is...

Question 7

Which salt is produced by the neutralization of nitric acid with calcium hydroxide?

Accepted Answer

A)   CaNO3
B)   Ca2(NO3) 3
C)   Ca3(NO3) 2
D)   Ca2NO3
E)   Ca(NO3) 2F) C) and E)
G) A) and B)

Question 8

Automobile batteries use 3.0 M H2SO4 as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid? H2SO4(aq)  + 2NaOH(aq)  → 2H2O(l)  + Na2SO4(aq)

Accepted Answer

A)   0.045 L
B)   0.28 L
C)   0.56 L
D)   0.90 L
E)   1.1 LF) All of the above
G) B) and D)

Question 9

What is oxidized in the following reaction? Fe + Ag2O → FeO + 2Ag

Accepted Answer

A)   Ag
B)   Ag2O
C)   Fe
D)   FeO
E)   2AgF) B) and D)
G) A) and B)

Question 10

Which of the following compounds is most likely to dissolve in water?

Accepted Answer

A)   BaSO4
B)   AgBr
C)   CaCO3
D)   Na2S
E)   None of these compounds would dissolve in water.F) A) and D)
G) B) and E)

Question 11

Which represents the result of mixing equal volumes of 1 M HCl and 1 M NH3 solutions? (Each sphere represents 1 mol of ions.)

Accepted Answer

A)   3 solutions? (Each sphere represents 1 mol of ions.)  
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G) A) and C)

Question 12

Which substance is present in the smallest proportion in a solution?

Accepted Answer

A)   liquid
B)   gas
C)   solvent
D)   solid
E)   soluteF) C) and E)
G) D) and E)

Question 13

Suppose aqueous solutions of silver(I)  nitrate and potassium chloride are mixed. Which represents the likely result?

Accepted Answer

A)   
B)   
C)   
D)   E) All of the above
F) B) and C)

Question 14

Which substance is present in the largest proportion in a solution?

Accepted Answer

A)   salute
B)   gas
C)   solvent
D)   solid
E)   soluteF) C) and E)
G) A) and B)

Question 15

Based on the solubility rules, which one of these compounds is soluble in water?

Accepted Answer

A)   CaSO4
B)   BaSO4
C)   PbSO4
D)   K2SO4
E)   Ag2SO4F) A) and D)
G) A) and B)

Question 16

A 3.682-g sample of KClO3 is dissolved in enough water to give 375. mL of solution. What is the chlorate ion concentration in this solution?

Accepted Answer

A)   9.82 M
B)   1.60 × 10-1 M
C)   8.01 ×10-2 M
D)   9.82 × 10-3 M
E)   1.60 × 10-2 MF) All of the above
G) A) and B)

Question 17

Which chemical equation describes a hydrogen displacement reaction?

Accepted Answer

A)   2C2H6(g)  + 7O2(g)  → 4CO2(g)  + 6H2O(l) 
B)   2KBr(aq)  + Cl2(g)  → 2KCl(aq)  + Br2(aq) 
C)   N2(g)  + 3H2(g)  → 2NH3(g) 
D)   CaBr2(aq)  + H2SO4(aq)  → CaSO4(s)  + 2HBr(aq) 
E)   2Al(s)  + 3H2SO4(aq)  → Al2(SO4) 3(aq)  + 3H2(g) F) A) and E)
G) B) and C)

Question 18

The distinguishing characteristic of all nonelectrolyte solutions is that they

Accepted Answer

A)   contain ions.
B)   do not conduct electricity.
C)   react with other solutions.
D)   always contain acids.
E)   conducts heat.F) C) and D)
G) A) and E)

Question 19

The substance NH3 is considered to be

Accepted Answer

A)   a weak acid.
B)   a weak base.
C)   a strong acid.
D)   a strong base.
E)   neither acidic nor basic.F) A) and C)
G) None of the above

Question 20

Which of the following is a strong base?

Accepted Answer

A)   NH3
B)   Ca(OH) 2
C)   Al(OH) 3
D)   B(OH) 3
E)   CH3OHF) A) and B)
G) None of the above

Exam 4: Reactions in Aqueous Solutions

The distinguishing characteristic of all nonelectrolyte solutions is that they

Correct AnswerverifiedShow Answer

Automobile batteries use 3.0 M H2SO4 as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid? H2SO4(aq) + 2NaOH(aq) → 2H2O(l) + Na2SO4(aq)

Correct AnswerverifiedShow Answer

Which substance is present in the smallest proportion in a solution?

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Which chemical equation describes a hydrogen displacement reaction?

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Suppose aqueous solutions of silver(I) nitrate and potassium chloride are mixed. Which represents the likely result?

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What is oxidized in the following reaction? Fe + Ag2O → FeO + 2Ag

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Write a short definition for an Arrhenius acid.

Correct AnswerverifiedAn Arrhenius acid is...View AnswerShow Answer

Based on the solubility rules, which one of these compounds is insoluble in water?

Correct AnswerverifiedShow Answer

A 3.682-g sample of KClO3 is dissolved in enough water to give 375. mL of solution. What is the chlorate ion concentration in this solution?

Correct AnswerverifiedShow Answer

Which of the following is a strong base?

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________ is the name given for the process when a substance gains electrons during a chemical reaction.

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The substance NH3 is considered to be

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Based on the solubility rules, which of these processes will occur if solutions of CuSO4(aq) and BaCl2(aq) are mixed?

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What is the oxidation number of oxygen in potassium superoxide, KO2?

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Based on the solubility rules, which one of these compounds is soluble in water?

Correct AnswerverifiedShow Answer

Which salt is produced by the neutralization of nitric acid with calcium hydroxide?

Correct AnswerverifiedShow Answer

Which represents the result of mixing equal volumes of 1 M HCl and 1 M NH3 solutions? (Each sphere represents 1 mol of ions.)

Correct AnswerverifiedShow Answer

Which of the following compounds is most likely to dissolve in water?

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Which substance is present in the largest proportion in a solution?

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Which is a strong acid?

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Correct Answer
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Automobile batteries use 3.0 M H₂SO₄ as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid? H₂SO₄(aq) + 2NaOH(aq) → 2H₂O(l) + Na₂SO₄(aq)

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What is oxidized in the following reaction? Fe + Ag₂O → FeO + 2Ag

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An Arrhenius acid is...
View Answer

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A 3.682-g sample of KClO₃ is dissolved in enough water to give 375. mL of solution. What is the chlorate ion concentration in this solution?

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The substance NH₃ is considered to be

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Based on the solubility rules, which of these processes will occur if solutions of CuSO₄(aq) and BaCl₂(aq) are mixed?

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What is the oxidation number of oxygen in potassium superoxide, KO₂?

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Which represents the result of mixing equal volumes of 1 M HCl and 1 M NH₃ solutions? (Each sphere represents 1 mol of ions.)

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