Question 1

If aqueous solutions of lead(II)  nitrate and sodium sulfate are mixed, which insoluble precipitate is formed?

Accepted Answer

A)   NaNO3
B)   Na2NO3
C)   PbSO4
D)   Pb2SO4
E)   PbSF) B) and E)
G) B) and D)

Question 2

Which of the following is soluble in water?

Accepted Answer

A)   AgCl
B)   Rb2CrO4
C)   Hg2I2
D)   CaSO4
E)   PbBr2F) A) and D)
G) B) and D)

Question 3

A(n) ________ is a substance that has a distinctly different color in acidic and basic media and is used in acid-base titrations to find the endpoint of the titration.

Accepted Answer

The answer of A(n) ________ is a substance that has...

Question 4

Which of these compounds is a weak electrolyte?

Accepted Answer

A)   HCl
B)   NH3
C)   C6H12O6 (glucose) 
D)   N2
E)   KClF) All of the above
G) A) and B)

Question 5

H3PO4 is a strong acid.

Accepted Answer

A) True 
 B)False

Question 6

What is the oxidation number of sulfur in sulfuric acid?

Accepted Answer

A)   +1
B)   +6
C)   -2
D)   -4
E)   +4F) C) and E)
G) A) and D)

Question 7

Identify NaOH as an electrolyte or nonelectrolyte.

Accepted Answer

The answer of Identify NaOH as an electrolyte or nonelectrolyte....

Question 8

Which one of the following is a strong acid?

Accepted Answer

A)   CH3COOH
B)   H2SO3
C)   NH3
D)   H3PO4
E)   HClO3F) B) and C)
G) A) and D)

Question 9

The substance (CH3CH2) 2NH 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) B) and C)
G) B) and D)

Question 10

Ammonium carbonate is not water soluble.

Accepted Answer

A) True 
 B)False

Question 11

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

Question 12

Identify the net ionic equation for the following reaction: 2NaCl(aq)  + Hg2(NO3) 2(aq)  → 2NaNO3(aq)  + Hg2Cl2(s)

Accepted Answer

A)   Na+(aq)  + NO3- (aq)  → NaNO3(aq) 
B)   Hg22+(aq)  + 2Cl-(aq)  → Hg2Cl2(s) 
C)   2Hg+(aq)  + 2Cl-(aq)  → 2HgCl(s) 
D)   Hg2(NO3) 2(aq)  → Hg22+(aq)  + 2NO3-(aq) 
E)   Hg22+(aq)  → Hg2(s) F) All of the above
G) C) and D)

Question 13

What is the oxidation number of iodine in I2?

Accepted Answer

A)   -1
B)   0
C)   +1
D)   +7
E)   -7F) A) and B)
G) B) and D)

Question 14

Which of these compounds is a strong electrolyte?

Accepted Answer

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

Question 15

Hydration is the process in which organic solvent molecules surround a solute particle.

Accepted Answer

A) True 
 B)False

Question 16

The substance HClO4 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) C) and D)
G) A) and B)

Question 17

Balance the following oxidation-reduction equation: Li(s)  + O2(g)  → Li2O(s)

Accepted Answer

A)   2Li(s)  + O2(g)  → Li2O(s) 
B)   Li(s)  + O2(g)  → Li2O(s) 
C)   4Li(s)  + O2(g)  → 2Li2O(s) 
D)   2Li(s)  + O2(g)  → 2Li2O(s) 
E)   2Li(s)  + O2(g)  → 4Li2O(s) F) B) and C)
G) D) and E)

Question 18

Which process defines how an ionic compound breaks apart into its constituent ions upon dissolution?

Accepted Answer

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

Question 19

A 4.691-g sample of MgCl2 is dissolved in enough water to give 750. mL of solution. What is the magnesium ion concentration in this solution?

Accepted Answer

A)   6.25 M
B)   6.57 × 10-2 M
C)   4.38 × 10-2 M
D)   3.29 × 10-2 M
E)   2.19 ×10-2 MF) D) and E)
G) A) and D)

Question 20

What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4?

Accepted Answer

A)   218.3 mL
B)   66.2 mL
C)   38.4 mL
D)   436.6 mL
E)   33.1 mLF) A) and B)
G) B) and D)

Exam 4: Reactions in Aqueous Solutions

What is the oxidation number of iodine in I2?

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The substance (CH3CH2) 2NH is considered to be

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Which of these compounds is a weak electrolyte?

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Identify the net ionic equation for the following reaction: 2NaCl(aq) + Hg2(NO3) 2(aq) → 2NaNO3(aq) + Hg2Cl2(s)

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Hydration is the process in which organic solvent molecules surround a solute particle.

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What is the oxidation number of sulfur in sulfuric acid?

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The substance HClO4 is considered to be

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Identify NaOH as an electrolyte or nonelectrolyte.

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A(n) ________ is a substance that has a distinctly different color in acidic and basic media and is used in acid-base titrations to find the endpoint of the titration.

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Which of these compounds is a strong electrolyte?

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Which one of the following is a strong acid?

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Balance the following oxidation-reduction equation: Li(s) + O2(g) → Li2O(s)

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Which process defines how an ionic compound breaks apart into its constituent ions upon dissolution?

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H3PO4 is a strong acid.

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If aqueous solutions of lead(II) nitrate and sodium sulfate are mixed, which insoluble precipitate is formed?

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A 4.691-g sample of MgCl2 is dissolved in enough water to give 750. mL of solution. What is the magnesium ion concentration in this solution?

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Ammonium carbonate is not water soluble.

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What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4?

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

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Which of the following is soluble in water?

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What is the oxidation number of iodine in I₂?

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The substance (CH₃CH₂) ₂NH is considered to be

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Identify the net ionic equation for the following reaction: 2NaCl(aq) + Hg₂(NO₃) ₂(aq) → 2NaNO₃(aq) + Hg₂Cl₂(s)

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The substance HClO₄ is considered to be

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Balance the following oxidation-reduction equation: Li(s) + O₂(g) → Li₂O(s)

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H₃PO₄ is a strong acid.

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A 4.691-g sample of MgCl₂ is dissolved in enough water to give 750. mL of solution. What is the magnesium ion concentration in this solution?

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What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H₂SO₄?

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