Question 1

Which salt is produced by the neutralization of hydrobromic acid with magnesium hydroxide?

Accepted Answer

A)  MgBr
B)  Mg2Br3
C)  MgBr2
D)  Mg3Br2
E)  Mg2BrF) C) and E)
G) None of the above

Question 2

Ammonium carbonate is not water soluble.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A)  NaCl
B)  MgBr2
C)  FeCl2
D)  AgBr
E)  ZnCl2F) B) and D)
G) A) and D)

Question 4

Which process defines how molecular compounds form ions upon dissolution?

Accepted Answer

A)  ionization
B)  composition
C)  division
D)  dissolution
E)  decompositionF) A) and B)
G) A) and C)

Question 5

Which of these compounds is a nonelectrolyte?

Accepted Answer

A)  NaF
B)  HNO3
C)  CH3COOH (acetic acid) 
D)  NaOH
E)  C6H12O6 (glucose) F) C) and D)
G) A) and C)

Question 6

The following reaction will occur Na(s)+ AgCl(aq)→ Ag(s)+ NaCl(aq)

Accepted Answer

A) True 
 B)False

Question 7

What mass of lithium phosphate is needed to prepare 500.mL of a solution having a lithium ion concentration of 0.125 M?

Accepted Answer

A)  2.41 g
B)  7.24 g
C)  14.5 g
D)  21.7 g
E)  43.4 gF) All of the above
G) C) and D)

Question 8

Which of these equations does not represent an oxidation-reduction reaction?

Accepted Answer

A)  3Al + 6HCl → 3H2 + AlCl3
B)  2H2O → 2H2 + O2
C)  2NaCl + Pb(NO3) 2 → PbCl2 + 2NaNO3
D)  2NaI + Br2 → 2NaBr + I2
E)  Cu(NO3) 2 + Zn → Zn(NO3) 2 + CuF) A) and D)
G) None of the above

Question 9

Which of these compounds is a strong electrolyte?

Accepted Answer

A)  H2O
B)  O2
C)  H2SO4
D)  C6H12O6 (glucose) 
E)  CH3COOH (acetic acid) F) B) and E)
G) A) and B)

Question 10

What is the net ionic equation for the reaction that occurs when aqueous solutions of Pb(NO3) 2 and NH4Cl are mixed?

Accepted Answer

A)  Pb(NO3) 2(aq) + 2NH4Cl(aq) → 2NH4NO3(aq) + PbCl2(s) 
B)  Pb2+(aq) + 2Cl-(aq) → PbCl2(s) 
C)  Pb2+(aq) + 2NO3-(aq) + 2NH4+(aq) + 2Cl-(aq) → 2NH4+(aq) + 2NO3-(aq) + PbCl2(s) 
D)  NH4+(aq) + NO3-(aq) → NH4NO3(s) 
E)  NH4+(aq) + NO3-(aq) → 2NO(g) + 2H2O(l) F) B) and C)
G) C) and D)

Question 11

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO3.If 1.573 g of a AgBr precipitate forms,what is the percent by mass of Br in the original compound?

Accepted Answer

A)  62.13%
B)  75.72%
C)  56.19%
D)  42.55%
E)  37.87%F) All of the above
G) C) and D)

Question 12

Which is a strong base?

Accepted Answer

A)  LiOH
B)  CH3COOH
C)  NH3
D)  H3PO4
E)  HClO2F) A) and B)
G) B) and E)

Question 13

Which process defines how an ionic compounds break apart into its constituent ions upon dissolution?

Accepted Answer

A)  electrolysis
B)  dissociation
C)  division
D)  ionization
E)  decompositionF) A) and D)
G) D) and E)

Question 14

Identify the reducing agent in the chemical reaction Cd + NiO2 + 2H2O → Cd(OH) 2 + Ni(OH) 2

Accepted Answer

A)  Cd
B)  NiO2
C)  H2O
D)  Cd(OH) 2
E)  Ni(OH) 2F) None of the above
G) B) and D)

Question 15

The distinguishing characteristic of all electrolyte solutions is that they

Accepted Answer

A)  contain molecules.
B)  conduct electricity.
C)  react with other solutions.
D)  always contain acids.
E)  conduct heat.F) None of the above
G) All of the above

Question 16

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) C) and D)

Question 17

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

Accepted Answer

A)  8.71 mL
B)  21.8 mL
C)  43.5 mL
D)  87.1 mL
E)  174 mLF) B) and D)
G) A) and B)

Question 18

Phenolphthalein is a universal indicator and maybe used as an indicator for all acid-base titrations.

Accepted Answer

A) True 
 B)False

Question 19

H3O+ is called the ________________ ________________.

Accepted Answer

Question 20

What is the oxidation number of oxygen in KMnO4?

Accepted Answer

A)  +1
B)  -8
C)  +5
D)  -2
E)  +3F) A) and E)
G) A) and B)

Exam 4: Reactions in Aqueous Solutions

H3O+ is called the ________________ ________________.

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The following reaction will occur Na(s)+ AgCl(aq)→ Ag(s)+ NaCl(aq)

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

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Which of these equations does not represent an oxidation-reduction reaction?

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

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Which of these compounds is a nonelectrolyte?

Correct AnswerverifiedShow Answer

Which of these compounds is a strong electrolyte?

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Which process defines how molecular compounds form ions upon dissolution?

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What mass of lithium phosphate is needed to prepare 500.mL of a solution having a lithium ion concentration of 0.125 M?

Correct AnswerverifiedShow Answer

Phenolphthalein is a universal indicator and maybe used as an indicator for all acid-base titrations.

Correct AnswerverifiedShow Answer

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO3.If 1.573 g of a AgBr precipitate forms,what is the percent by mass of Br in the original compound?

Correct AnswerverifiedShow Answer

What is the net ionic equation for the reaction that occurs when aqueous solutions of Pb(NO3) 2 and NH4Cl are mixed?

Correct AnswerverifiedShow Answer

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

Correct AnswerverifiedShow Answer

Ammonium carbonate is not water soluble.

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Which is a strong base?

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Identify the reducing agent in the chemical reaction Cd + NiO2 + 2H2O → Cd(OH) 2 + Ni(OH) 2

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What is the oxidation number of oxygen in KMnO4?

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Which salt is produced by the neutralization of hydrobromic acid with magnesium hydroxide?

Correct AnswerverifiedShow Answer

Which process defines how an ionic compounds break apart into its constituent ions upon dissolution?

Correct AnswerverifiedShow Answer

The distinguishing characteristic of all electrolyte solutions is that they

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H₃O⁺is called the .

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

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A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO₃.If 1.573 g of a AgBr precipitate forms,what is the percent by mass of Br in the original compound?

Correct Answer
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What is the net ionic equation for the reaction that occurs when aqueous solutions of Pb(NO₃) 2 and NH₄Cl are mixed?

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What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO₃?

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Identify the reducing agent in the chemical reaction Cd + NiO₂ + 2H₂O → Cd(OH) ₂ + Ni(OH) ₂

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What is the oxidation number of oxygen in KMnO₄?

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