Question 1

Which of these metals is the most easily oxidized? Na
Au
Fe
Ca
Ag

Accepted Answer

A)  Na
B)  Au
C)  Fe
D)  Ca
E)  Ag

Question 2

What is the concentration (M) of KCl in a solution made by mixing 25.0 mL of 0.100 M KCl with 50.0 mL of 0.100 M KCl?

Accepted Answer

A)  0.100
B)  0.0500
C)  0.0333
D)  0.0250
E)  125

Question 3

The net ionic equation for the dissolution of zinc metal in aqueous hydrobromic acid is ________.

Accepted Answer

A)  Zn (s)  + 2Br- (aq)  → ZnBr2 (aq) 
B)  Zn (s)  + 2HBr (aq)  → ZnBr2 (aq)  + 2H+ (aq) 
C)  Zn (s)  + 2HBr (aq)  → ZnBr2 (s)  + 2H+ (aq) 
D)  Zn (s)  + 2H+ (aq)  → Zn2+ (aq)  + H2 (g) 
E)  2Zn (s)  + H+ (aq)  → 2Zn2+ (aq)  + H2 (g)

Question 4

The spectator ions in the reaction between aqueous perchloric acid and aqueous barium hydroxide are ________.

Accepted Answer

A)  OH- and ClO4-
B)  H+, OH- , ClO4-, and Ba2+
C)  H+ and OH-
D)  H+ and Ba2+
E)  ClO4- and Ba2+

Question 5

The net ionic equation for formation of an aqueous solution of Al(NO3) 3 via mixing solid Al(OH) 3 and aqueous nitric acid is ________.

Accepted Answer

A)  Al(OH) 3 (s)  + 3HNO3 (aq)  → 3H2O (l)  + Al(NO3) 3 (aq) 
B)  Al(OH) 3 (s)  + 3NO3- (aq)  → 3OH- (aq)  + Al(NO3) 3 (aq) 
C)  Al(OH) 3 (s)  + 3NO3- (aq)  → 3OH- (aq)  + Al(NO3) 3 (s) 
D)  Al(OH) 3 (s)  + 3H+ (aq)  → 3H2O (l)  + Al3+ (aq) 
E)  Al(OH) 3 (s)  + 3HNO3 (aq)  → 3H2O (l)  + Al3+ (aq)  + NO3- (aq)

Question 6

The net ionic equation for the reaction between aqueous solutions of HF and KOH is ________.

Accepted Answer

A)  HF + KOH → H2O + K+ + F-
B)  HF + OH- → H2O + F-
C)  HF + K+ + OH- → H2O + KF
D)  H+ + OH- → H2O
E)  H+ + F- + K+  + OH- → H2O + K+ + F-

Question 7

The balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed is ________.

Accepted Answer

A)  2Na+ (aq)  + CO32- (aq)  → Na2CO3 (aq) 
B)  2Na+ (aq)  + 2Cl- (aq)  → 2NaCl (aq) 
C)  Na+ (aq)  + Cl- (aq)  → NaCl (aq) 
D)  Ca+(aq)  + CO32- (aq)  → CaCO3 (s) 
E)  Na2CO3 (aq)  + Ca 3 when aqueous solutions of Na2CO3 and CaCl2 are mixed is ________. 
A)  2Na+ (aq)  + CO32- (aq)  → Na2CO3 (aq)  
B)  2Na+ (aq)  + 2Cl- (aq)  → 2NaCl (aq)  
C)  Na+ (aq)  + Cl- (aq)  → NaCl (aq)  
D)  Ca+(aq)  + CO32- (aq)  → CaCO3 (s)  
E)  Na2CO3 (aq)  + Ca   (aq)  → 2NaCl (aq)  + CaCO3 (s) " class="answers-bank-image d-inline" rel="preload" > (aq)  → 2NaCl (aq)  + CaCO3 (s)

Question 8

Which hydroxides are strong bases? Sr(OH) 2
KOH
NaOH
Ba(OH) 2

Accepted Answer

A)  KOH, Ba(OH) 2
B)  KOH, NaOH
C)  KOH, NaOH, Ba(OH) 2
D)  Sr(OH) 2, KOH, NaOH, Ba(OH) 2
E)  None of these is a strong base.

Question 9

In which reaction does the oxidation number of hydrogen change?

Accepted Answer

A)  HCl (aq)  + NaOH (aq)  → NaCl (aq)  + H2O (l) 
B)  2Na (s)  + 2H2O (l)  → 2NaOH (aq)  + H2 (g) 
C)  CaO (s)  + H2O (l)  → Ca(OH) 2 (s) 
D)  2HClO4 (aq)  + CaCO3 (s)  → Ca(ClO4) 2 (aq)  + H2O (l)  + CO2 (g) 
E)  SO2 (g)  + H2O (l)  → H2SO3 (aq)

Question 10

How many grams of sodium chloride are there in 550.0 mL of a 1.90 M aqueous solution of sodium chloride?

Accepted Answer

A)  61.1
B)  1.05
C)  30.5
D)  6.11 × 104
E)  122

Question 11

What are the respective concentrations (M) of K+ and PO43- afforded by dissolving 0.800 mol K3PO4 in water and diluting to 1.63 L?

Accepted Answer

A)  0.800 and 0.800
B)  0.491 and 0.491
C)  0.800 and 0.491
D)  1.44 and 0.491
E)  0.489 and 0.163

Question 12

In which species does chlorine have an oxidation number of zero?

Accepted Answer

A)  Cl2
B)  HClO4
C)  NaClO3
D)  Cl-
E)  HCl

Question 13

Which of the following are strong electrolytes? HCl
HC2H3O2
NH3
KCl

Accepted Answer

A)  HCl, KCl
B)  HCl, NH3, KCl
C)  HCl, HC2H3O2, NH3, KCl
D)  HCl, HC2H3O2, KCl
E)  HC2H3O2, KCl

Question 14

What volume (mL) of a concentrated solution of magnesium chloride (9.00 M) must be diluted to 350. mL to make a 2.75 M solution of magnesium chloride?

Accepted Answer

A)  2.75
B)  50.0
C)  45.0
D)  107
E)  350

Question 15

Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride: Ag+  (aq)  + Cl- (aq)  → AgCl (s) 
Silver chloride is virtually insoluble in water so that the reaction appears to go to completion. How many grams of solid NaCl must be added to 25.0 mL of 0.149 M AgNO3 solution to completely precipitate the silver?

Accepted Answer

A)  3.73 × 10-3
B)  6.37 × 10-5
C)  0.218
D)  0.0637
E)  1.57 × 104

Question 16

Which combination will produce a precipitate?

Accepted Answer

A)  NH4OH (aq) and HCl (aq) 
B)  AgNO3 (aq) and Ca(C2H3O2) 2 (aq) 
C)  NaOH (aq) and HCl (aq) 
D)  NaCl (aq) and HC2H3O2 (aq) 
E)  NaOH (aq) and Fe(NO3) 2 (aq)

Question 17

Based on the equations below, which metal is the most active? Pb(NO3) 2 (aq)  + Ni (s)  → Ni(NO3) 2 (aq)  + Pb (s) 
Pb(NO3) 2 (aq)  + Ag (s)  → No reaction
Cu(NO3) 2 (aq)  + Ni (s)  → Ni(NO3) 2 (aq)  + Cu (s)

Accepted Answer

A)  Ni
B)  Ag
C)  Cu
D)  Pb
E)  N

Question 18

The spectator ions in the reaction between aqueous hydrochloric acid and aqueous ammonia are ________.

Accepted Answer

A)  H+ and NH3
B)  H+, Cl-, NH3, and NH4+
C)  Cl- and NH4+
D)  H+, Cl-, and NH4+
E)  Cl- only

Question 19

Calculate the concentration (M)of sodium ions in a solution made by diluting 50.0 mL of a 0.874 M solution of sodium sulfide to a total volume of 250 mL.

Accepted Answer

The answer of Calculate the concentration (M)of sodium ions in...

Question 20

Which hydroxides are weak bases?

Accepted Answer

A)  KOH
B)  Ba(OH) 2
C)  RbOH
D)  CsOH
E)  None of these choices are weak bases.

Exam 4: Aqueous Reactions and Solution Stoichiometry

In which reaction does the oxidation number of hydrogen change?

Correct Answer
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The spectator ions in the reaction between aqueous hydrochloric acid and aqueous ammonia are ________.

Correct Answer
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The net ionic equation for the dissolution of zinc metal in aqueous hydrobromic acid is ________.

Correct Answer
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Which of the following are strong electrolytes? HCl HC₂H₃O₂ NH₃ KCl

Correct Answer
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The spectator ions in the reaction between aqueous perchloric acid and aqueous barium hydroxide are ________.

Correct Answer
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What are the respective concentrations (M) of K⁺ and PO₄^3- afforded by dissolving 0.800 mol K₃PO₄ in water and diluting to 1.63 L?

Correct Answer
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Correct Answer
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Which hydroxides are weak bases?

Correct Answer
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In which species does chlorine have an oxidation number of zero?

Correct Answer
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The balanced net ionic equation for precipitation of CaCO₃ when aqueous solutions of Na₂CO₃ and CaCl₂ are mixed is ________.

Correct Answer
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Which hydroxides are strong bases? Sr(OH) ₂ KOH NaOH Ba(OH) ₂

Correct Answer
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How many grams of sodium chloride are there in 550.0 mL of a 1.90 M aqueous solution of sodium chloride?

Correct Answer
verified

What volume (mL) of a concentrated solution of magnesium chloride (9.00 M) must be diluted to 350. mL to make a 2.75 M solution of magnesium chloride?

Correct Answer
verified

The net ionic equation for formation of an aqueous solution of Al(NO₃) ₃ via mixing solid Al(OH) ₃ and aqueous nitric acid is ________.

Correct Answer
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Which of these metals is the most easily oxidized? Na Au Fe Ca Ag

Correct Answer
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Based on the equations below, which metal is the most active? Pb(NO₃) ₂ (aq) + Ni (s) → Ni(NO₃) ₂ (aq) + Pb (s) Pb(NO₃) ₂ (aq) + Ag (s) → No reaction Cu(NO₃) ₂ (aq) + Ni (s) → Ni(NO₃) ₂ (aq) + Cu (s)

Correct Answer
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The net ionic equation for the reaction between aqueous solutions of HF and KOH is ________.

Correct Answer
verified

What is the concentration (M) of KCl in a solution made by mixing 25.0 mL of 0.100 M KCl with 50.0 mL of 0.100 M KCl?

Correct Answer
verified

Calculate the concentration (M)of sodium ions in a solution made by diluting 50.0 mL of a 0.874 M solution of sodium sulfide to a total volume of 250 mL.

Correct Answer
verified

Which combination will produce a precipitate?

Correct Answer
verified

Exam 4: Aqueous Reactions and Solution Stoichiometry

In which reaction does the oxidation number of hydrogen change?

Correct AnswerverifiedShow Answer

The spectator ions in the reaction between aqueous hydrochloric acid and aqueous ammonia are ________.

Correct AnswerverifiedShow Answer

The net ionic equation for the dissolution of zinc metal in aqueous hydrobromic acid is ________.

Correct AnswerverifiedShow Answer

Which of the following are strong electrolytes? HCl HC2H3O2 NH3 KCl

Correct AnswerverifiedShow Answer

The spectator ions in the reaction between aqueous perchloric acid and aqueous barium hydroxide are ________.

Correct AnswerverifiedShow Answer

What are the respective concentrations (M) of K+ and PO43- afforded by dissolving 0.800 mol K3PO4 in water and diluting to 1.63 L?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which hydroxides are weak bases?

Correct AnswerverifiedShow Answer

In which species does chlorine have an oxidation number of zero?

Correct AnswerverifiedShow Answer

The balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed is ________.

Correct AnswerverifiedShow Answer

Which hydroxides are strong bases? Sr(OH) 2 KOH NaOH Ba(OH) 2

Correct AnswerverifiedShow Answer

How many grams of sodium chloride are there in 550.0 mL of a 1.90 M aqueous solution of sodium chloride?

Correct AnswerverifiedShow Answer

What volume (mL) of a concentrated solution of magnesium chloride (9.00 M) must be diluted to 350. mL to make a 2.75 M solution of magnesium chloride?

Correct AnswerverifiedShow Answer

The net ionic equation for formation of an aqueous solution of Al(NO3) 3 via mixing solid Al(OH) 3 and aqueous nitric acid is ________.

Correct AnswerverifiedShow Answer

Which of these metals is the most easily oxidized? Na Au Fe Ca Ag

Correct AnswerverifiedShow Answer

Based on the equations below, which metal is the most active? Pb(NO3) 2 (aq) + Ni (s) → Ni(NO3) 2 (aq) + Pb (s) Pb(NO3) 2 (aq) + Ag (s) → No reaction Cu(NO3) 2 (aq) + Ni (s) → Ni(NO3) 2 (aq) + Cu (s)

Correct AnswerverifiedShow Answer

The net ionic equation for the reaction between aqueous solutions of HF and KOH is ________.

Correct AnswerverifiedShow Answer

What is the concentration (M) of KCl in a solution made by mixing 25.0 mL of 0.100 M KCl with 50.0 mL of 0.100 M KCl?

Correct AnswerverifiedShow Answer

Calculate the concentration (M)of sodium ions in a solution made by diluting 50.0 mL of a 0.874 M solution of sodium sulfide to a total volume of 250 mL.

Correct AnswerverifiedShow Answer

Which combination will produce a precipitate?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Which of the following are strong electrolytes? HCl HC₂H₃O₂ NH₃ KCl

Correct Answer
verified

Correct Answer
verified

What are the respective concentrations (M) of K⁺ and PO₄^3- afforded by dissolving 0.800 mol K₃PO₄ in water and diluting to 1.63 L?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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The balanced net ionic equation for precipitation of CaCO₃ when aqueous solutions of Na₂CO₃ and CaCl₂ are mixed is ________.

Correct Answer
verified

Which hydroxides are strong bases? Sr(OH) ₂ KOH NaOH Ba(OH) ₂

Correct Answer
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Correct Answer
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Correct Answer
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The net ionic equation for formation of an aqueous solution of Al(NO₃) ₃ via mixing solid Al(OH) ₃ and aqueous nitric acid is ________.

Correct Answer
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Correct Answer
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Based on the equations below, which metal is the most active? Pb(NO₃) ₂ (aq) + Ni (s) → Ni(NO₃) ₂ (aq) + Pb (s) Pb(NO₃) ₂ (aq) + Ag (s) → No reaction Cu(NO₃) ₂ (aq) + Ni (s) → Ni(NO₃) ₂ (aq) + Cu (s)

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
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