Question 1

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 B)
G) B) and C)

Question 2

Given the following information,write a short activity series for the metals copper,silver,lead,and zinc.
Expt.#1: copper + silver nitrate
Observation: The copper is becoming coated with a substance.
Expt.#2: lead + copper(II)nitrate
Observation: The lead is turning black and crumbling.
Expt.#3: zinc + lead(II)nitrate
Observation: The solid zinc falls apart.

Accepted Answer

Most active Zn,next ...

Question 3

What is the oxidation number of N in K3Fe(CN) 6?

Accepted Answer

A)  +3
B)  -3
C)  +4
D)  -5
E)  +1F) A) and B)
G) C) and E)

Question 4

Which is a strong acid?

Accepted Answer

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

Question 5

___________ 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 6

Which of these chemical equations describes a disproportionation reaction?

Accepted Answer

A)  2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O (l) 
B)  2KBr(aq) + Cl2(g) → 2KCl(aq) + Br2(l) 
C)  2H2O2(aq) → 2H2O(l) + O2(g) 
D)  CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2HBr(g) 
E)  2Al(s) + 3H2SO4(aq) → Al2(SO4) 3(aq) + 3H2(g) F) C) and D)
G) C) and E)

Question 7

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) A) and D)
G) A) and C)

Question 8

35.0 mL of 0.255 M nitric acid is added to 45.0 mL of 0.328 M Mg(NO3) 2.What is the concentration of nitrate ion in the final solution?

Accepted Answer

A)  0.296 M
B)  0.481 M
C)  0.583 M
D)  0.911 M
E)  0.148 MF) B) and C)
G) A) and E)

Question 9

Which one of the following is a strong acid?

Accepted Answer

A)  H2CO3
B)  H2SO3
C)  H2SO4
D)  H3PO4
E)  CH3COOHF) All of the above
G) A) and C)

Question 10

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) B) and C)
G) C) and D)

Question 11

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

Question 12

Complete the following reaction and identify the Brønsted acid. NaOH(aq) + HCl(aq) →

Accepted Answer

A)  NaH(aq) + HOCl(aq) ; NaOH is the acid.
B)  NaH(aq) + HOCl(aq) ; HCl is the acid.
C)  NaCl(aq) + H2O(l) ; NaOH is the acid.
D)  NaCl(aq) + H2O(l) ; HCl is the acid.
E)  NaCl(aq) + H2O(l) ; NaCl is the acid.F) A) and E)
G) A) and C)

Question 13

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

Accepted Answer

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

Question 14

Write a short definition for an Arrhenius acid.

Accepted Answer

An Arrhenius acid is...

Question 15

Which salt is produced by the neutralization of potassium hydroxide with sulfuric acid?

Accepted Answer

A)  KSO3
B)  K2(SO4) 3
C)  K2SO4
D)  K(SO4) 2
E)  KSO4F) A) and D)
G) B) and E)

Question 16

Suppose a large piece of a metallic solid,A(s) ,is placed in a beaker containing the metallic cation Z2+(aq) , as depicted below. 2+(aq) , as depicted below.   If Z is a more active metal than A,which is a possible representation of the final reaction mixture?   A) I only B) II only C) III only D) I or II E) II or III" class="answers-bank-image d-inline" rel="preload" > If Z is a more active metal than A,which is a possible representation of the final reaction mixture? 2+(aq) , as depicted below.   If Z is a more active metal than A,which is a possible representation of the final reaction mixture?   A) I only B) II only C) III only D) I or II E) II or III" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I only
B)  II only
C)  III only
D)  I or II
E)  II or IIIF) B) and D)
G) All of the above

Question 17

Starting with a 1.35 M HCl stock solution,five standard solutions are prepared by sequentially diluting 5.00 mL of each solution to 100.0 mL.What is the concentration of the final solution?

Accepted Answer

A)  3.38 × 10-3 M
B)  1.69 × 10-4 M
C)  6.25 × 10-2 M
D)  4.22 × 10-7 M
E)  1.35 MF) C) and D)
G) C) and E)

Question 18

If aqueous solutions of ammonium sulfide and copper(II) nitrate are mixed,which insoluble precipitate is formed?

Accepted Answer

A)  CuS
B)  Cu2S
C)  NH4NO3
D)  NH4(NO3) 2
E)  CuSO4F) A) and E)
G) A) and B)

Question 19

Which of these compounds is a nonelectrolyte?

Accepted Answer

A)  NaOH
B)  HNO3
C)  C2H6O (ethanol) 
D)  KF
E)  CH3COOH (acetic acid) F) A) and C)
G) D) and E)

Question 20

Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) 
What mass of hydrogen gas is produced when a 7.35-g sample of zinc dissolves in 500.mL of 1.200 M HCl?

Accepted Answer

A)  0.605 g
B)  0.113 g
C)  0.302 g
D)  0.453 g
E)  0.227 gF) All of the above
G) A) and B)

Exam 4: Reactions in Aqueous Solutions

Suppose a large piece of a metallic solid,A(s) ,is placed in a beaker containing the metallic cation Z²⁺(aq) , as depicted below. If Z is a more active metal than A,which is a possible representation of the final reaction mixture?

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

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

Correct Answer
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Starting with a 1.35 M HCl stock solution,five standard solutions are prepared by sequentially diluting 5.00 mL of each solution to 100.0 mL.What is the concentration of the final solution?

Correct Answer
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Which of these chemical equations describes a disproportionation reaction?

Correct Answer
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Correct Answer
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Most active Zn,next ...
View Answer

Complete the following reaction and identify the Brønsted acid. NaOH(aq) + HCl(aq) →

Correct Answer
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Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows: Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g) What mass of hydrogen gas is produced when a 7.35-g sample of zinc dissolves in 500.mL of 1.200 M HCl?

Correct Answer
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35.0 mL of 0.255 M nitric acid is added to 45.0 mL of 0.328 M Mg(NO₃) ₂.What is the concentration of nitrate ion in the final solution?

Correct Answer
verified

Which one of the following is a strong acid?

Correct Answer
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Which salt is produced by the neutralization of potassium hydroxide with sulfuric acid?

Correct Answer
verified

What is the oxidation number of N in K₃Fe(CN) ₆?

Correct Answer
verified

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 Answer
verified

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

Correct Answer
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___________ is the name given for the process when a substance gains electrons during a chemical reaction.

Correct Answer
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Which of these compounds is a nonelectrolyte?

Correct Answer
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Write a short definition for an Arrhenius acid.

Correct Answer
verified
An Arrhenius acid is...
View Answer

Which is a strong acid?

Correct Answer
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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?

Correct Answer
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If aqueous solutions of ammonium sulfide and copper(II) nitrate are mixed,which insoluble precipitate is formed?

Correct Answer
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Exam 4: Reactions in Aqueous Solutions

Suppose a large piece of a metallic solid,A(s) ,is placed in a beaker containing the metallic cation Z2+(aq) , as depicted below. If Z is a more active metal than A,which is a possible representation of the final reaction mixture?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Starting with a 1.35 M HCl stock solution,five standard solutions are prepared by sequentially diluting 5.00 mL of each solution to 100.0 mL.What is the concentration of the final solution?

Correct AnswerverifiedShow Answer

Which of these chemical equations describes a disproportionation reaction?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedMost active Zn,next ...View AnswerShow Answer

Complete the following reaction and identify the Brønsted acid. NaOH(aq) + HCl(aq) →

Correct AnswerverifiedShow Answer

Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) What mass of hydrogen gas is produced when a 7.35-g sample of zinc dissolves in 500.mL of 1.200 M HCl?

Correct AnswerverifiedShow Answer

35.0 mL of 0.255 M nitric acid is added to 45.0 mL of 0.328 M Mg(NO3) 2.What is the concentration of nitrate ion in the final solution?

Correct AnswerverifiedShow Answer

Which one of the following is a strong acid?

Correct AnswerverifiedShow Answer

Which salt is produced by the neutralization of potassium hydroxide with sulfuric acid?

Correct AnswerverifiedShow Answer

What is the oxidation number of N in K3Fe(CN) 6?

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of these compounds is a nonelectrolyte?

Correct AnswerverifiedShow Answer

Write a short definition for an Arrhenius acid.

Correct AnswerverifiedAn Arrhenius acid is...View AnswerShow Answer

Which is a strong acid?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If aqueous solutions of ammonium sulfide and copper(II) nitrate are mixed,which insoluble precipitate is formed?

Correct AnswerverifiedShow Answer

Suppose a large piece of a metallic solid,A(s) ,is placed in a beaker containing the metallic cation Z²⁺(aq) , as depicted below. If Z is a more active metal than A,which is a possible representation of the final reaction mixture?

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified
Most active Zn,next ...
View Answer

Correct Answer
verified

Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows: Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g) What mass of hydrogen gas is produced when a 7.35-g sample of zinc dissolves in 500.mL of 1.200 M HCl?

Correct Answer
verified

35.0 mL of 0.255 M nitric acid is added to 45.0 mL of 0.328 M Mg(NO₃) ₂.What is the concentration of nitrate ion in the final solution?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What is the oxidation number of N in K₃Fe(CN) ₆?

Correct Answer
verified

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 Answer
verified

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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
An Arrhenius acid is...
View Answer

Correct Answer
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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?

Correct Answer
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Correct Answer
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