In the reaction 2 H2O2(l)→ 2 H2O(l)+ O2(g)oxygen is

A) both oxidized and reduced. B) neither oxidized nor reduced. C) only oxidized. D) only reduced. A) both oxidized and reduced. B) neither oxidized nor reduced. C) only oxidized. D) only reduced.

What reagent would distinguish between Ba2+ and Pb2+?

A) KCl B) LiNO3 C) K2SO4 D) Li2S2O3 A) KCl B) LiNO3 C) K2SO4 D) Li2S2O3

When 220.mL of 1.50 × 10-4 M hydrochloric acid is added to 125 mL of 1.75 × 10-4 M Mg(OH)2,the resulting solution will be

A) acidic. B) basic C) neutral. D) It is impossible to tell from the information given. A) acidic. B) basic C) neutral. D) It is impossible to tell from the information given.

The reaction C6H12O6(s)+ 6 O2(g)→ 6 CO2(g)+ 6 H2O(l)is best classified as a(n)

A) acid-base neutralization reaction. B) double replacement reaction. C) oxidation-reduction reaction. D) precipitation reaction. A) acid-base neutralization reaction. B) double replacement reaction. C) oxidation-reduction reaction. D) precipitation reaction.

The reaction 2 HNO3(aq)+ Ba(OH)2(aq)→ Ba(NO3)2(aq)+ 2 H2O(l)is best classified as a(n)

A) acid-base neutralization reaction. B) oxidation-reduction reaction. C) precipitation reaction. D) single replacement reaction. A) acid-base neutralization reaction. B) oxidation-reduction reaction. C) precipitation reaction. D) single replacement reaction.

How many mL of a 0.175 M FeCl3 solution are needed to make 550.mL of a solution that is 0.300 M in Cl- ion?

A) 0.943 mL B) 314 mL C) 943 mL D) It is not possible to make a more concentrated solution from a less concentrated solution. A) 0.943 mL B) 314 mL C) 943 mL D) It is not possible to make a more concentrated solution from a less concentrated solution.

Using the following portion of the activity series for oxidation half reactions Ca(s)→ Ca2+(aq)+ 2e- Mg(s)→ Mg2+(aq)+ 2e- Zn(s)→ Zn2+(aq)+ 2e- Cu(s)→ Cu2+(aq)+ 2e- Determine which reaction will not occur.

A) Ca(s)with Cu2+(aq) B) Ca(s)with Zn2+(aq) C) Zn(s)with Cu2+(aq) D) Zn(s)with Mg2+(aq) A) Ca(s)with Cu2+(aq) B) Ca(s)with Zn2+(aq) C) Zn(s)with Cu2+(aq) D) Zn(s)with Mg2+(aq)

Write a balanced net ionic equation for the reaction of Pb(NO3)2(aq)with NaI(aq).

A) Pb(NO3)2(aq)+ 2 NaI(aq)→ PbI2(s)+ 2 NaNO3(aq) B) Pb2+(aq)+ 2 NO3-(aq)+ 2 Na+(aq)+ 2 I-(aq)→ Pb2+(aq)+ 2 I-(aq)+ 2 Na+(aq)+ 2 NO3-(aq) C) Pb2+(aq)+ 2 NO3-(aq)+ 2 Na+(aq)+ 2 I-(aq)→ PbI2(s)+ 2 Na+(aq)+ 2 NO3-(aq) D) Pb2+(aq)+ 2 I-(aq)→ PbI2(s) A) Pb(NO3)2(aq)+ 2 NaI(aq)→ PbI2(s)+ 2 NaNO3(aq) B) Pb2+(aq)+ 2 NO3-(aq)+ 2 Na+(aq)+ 2 I-(aq)→ Pb2+(aq)+ 2 I-(aq)+ 2 Na+(aq)+ 2 NO3-(aq) C) Pb2+(aq)+ 2 NO3-(aq)+ 2 Na+(aq)+ 2 I-(aq)→ PbI2(s)+ 2 Na+(aq)+ 2 NO3-(aq) D) Pb2+(aq)+ 2 I-(aq)→ PbI2(s)

Exam 4: Reactions in Aqueous Solutions

Three different substances,A₂X,A₂Y,and A₂Z,were dissolved in water with the following results.(Water molecules are omitted for clarity. )Which of the substances is the strongest electrolyte,and which is the weakest?

(Multiple Choice)

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Question 21

Assume that an aqueous solution of hydroxide ion,OH^-,represented by unshaded spheres,is allowed to mix with a solution of an acid,H_nA,represented by gray spheres.Three possible outcomes are represented by boxes (a)-(c),where the black spheres represent Aⁿ^-,the anion of the acid.For clarity H₂O molecules are not shown. -Which outcome corresponds to the reaction: H₂SO₄ + 2 OH^- → 2 H₂O + SO₄^2-?

(Multiple Choice)

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Question 22

What is the molarity of a solution prepared by diluting 25 mL of 2.0 M HCl with enough water to make 250 mL of solution?

(Short Answer)

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Question 23

The balanced net ionic equation for the reaction Li₂SO₄(aq)+ Ca(NO₃)₂(aq)→ CaSO₄(s)+ 2 LiNO₃(aq)is ________.

(Short Answer)

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Question 24

In the reaction 2 H₂O₂(l)→ 2 H₂O(l)+ O₂(g)oxygen is

(Multiple Choice)

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Question 25

What is the oxidation number change for the manganese atom in the following unbalanced reduction half reaction? MnO₄^-(aq)+ H⁺(aq)→ Mn²⁺(aq)+ H₂O(l)

(Multiple Choice)

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Question 26

What reagent would distinguish between Ba²⁺ and Pb²⁺?

(Multiple Choice)

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Question 27

Which elementwill not react with liquid water but will react with aqueous H⁺ ions and steam?

(Multiple Choice)

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Question 28

When 220.mL of 1.50 × 10^-4M hydrochloric acid is added to 125 mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

(Multiple Choice)

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Question 29

The reaction C₆H₁₂O₆(s)+ 6 O₂(g)→ 6 CO₂(g)+ 6 H₂O(l)is best classified as a(n)

(Multiple Choice)

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Question 30

The reaction 2 HNO₃(aq)+ Ba(OH)₂(aq)→ Ba(NO₃)₂(aq)+ 2 H₂O(l)is best classified as a(n)

(Multiple Choice)

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Question 31

Which species functions as the reducing agent in the following reduction-oxidation reaction? 2 P(s)+ 3 Br₂(l)→ 2 PBr₃(l)

(Multiple Choice)

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Question 32

A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150.mL of solution.She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.What is the concentration of KOH for the final solution?

(Multiple Choice)

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Question 33

How many mL of a 0.175 M FeCl₃solution are needed to make 550.mL of a solution that is 0.300 M in Cl^- ion?

(Multiple Choice)

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Question 34

Assume that an aqueous solution of hydroxide ion,OH^-,represented by unshaded spheres,is allowed to mix with a solution of an acid,H_nA,represented by gray spheres.Three possible outcomes are represented by boxes (a)-(c),where the black spheres represent Aⁿ^-,the anion of the acid.For clarity H₂O molecules are not shown. -Which outcome corresponds to the reaction: H₃AsO₄ + 3 OH^- → 3 H₂O + AsO₄^3-?

(Multiple Choice)

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Question 35

Using the following portion of the activity series for oxidation half reactions Ca(s)→ Ca²⁺(aq)+ 2e^- Mg(s)→ Mg²⁺(aq)+ 2e^- Zn(s)→ Zn²⁺(aq)+ 2e^- Cu(s)→ Cu²⁺(aq)+ 2e^- Determine which reaction will not occur.

(Multiple Choice)

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Question 36

Which outcome corresponds to the combination of calcium and carbonate ions shown in the following equation? Ca²⁺(aq)+ CO₃^2-(aq)→ ?

(Multiple Choice)

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Question 37

Which of the following compounds is not an Arrhenius acid?

(Multiple Choice)

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Question 38

The balanced net ionic equation for the reaction H₂SO₄(aq)+ 2 KOH(aq)→ K₂SO₄(aq)+ 2 H₂O(l)is ________.

(Short Answer)

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Question 39

Write a balanced net ionic equation for the reaction of Pb(NO₃)₂(aq)with NaI(aq).

(Multiple Choice)

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Question 40

Showing 21 - 40 of 211

Exam 4: Reactions in Aqueous Solutions

Three different substances,A2X,A2Y,and A2Z,were dissolved in water with the following results.(Water molecules are omitted for clarity. )Which of the substances is the strongest electrolyte,and which is the weakest?

What is the molarity of a solution prepared by diluting 25 mL of 2.0 M HCl with enough water to make 250 mL of solution?

The balanced net ionic equation for the reaction Li2SO4(aq)+ Ca(NO3)2(aq)→ CaSO4(s)+ 2 LiNO3(aq)is ________.

In the reaction 2 H2O2(l)→ 2 H2O(l)+ O2(g)oxygen is

What is the oxidation number change for the manganese atom in the following unbalanced reduction half reaction? MnO4-(aq)+ H+(aq)→ Mn2+(aq)+ H2O(l)

What reagent would distinguish between Ba2+ and Pb2+?

Which elementwill not react with liquid water but will react with aqueous H+ ions and steam?

When 220.mL of 1.50 × 10-4 M hydrochloric acid is added to 125 mL of 1.75 × 10-4 M Mg(OH)2,the resulting solution will be

The reaction C6H12O6(s)+ 6 O2(g)→ 6 CO2(g)+ 6 H2O(l)is best classified as a(n)

The reaction 2 HNO3(aq)+ Ba(OH)2(aq)→ Ba(NO3)2(aq)+ 2 H2O(l)is best classified as a(n)

Which species functions as the reducing agent in the following reduction-oxidation reaction? 2 P(s)+ 3 Br2(l)→ 2 PBr3(l)

A student prepared a stock solution by dissolving 15.0 g of KOH in enough water to make 150.mL of solution.She then took 15.0 mL of the stock solution and diluted it with enough water to make water to make 65.0 mL of a final solution.What is the concentration of KOH for the final solution?

How many mL of a 0.175 M FeCl3 solution are needed to make 550.mL of a solution that is 0.300 M in Cl- ion?

Using the following portion of the activity series for oxidation half reactions Ca(s)→ Ca2+(aq)+ 2e- Mg(s)→ Mg2+(aq)+ 2e- Zn(s)→ Zn2+(aq)+ 2e- Cu(s)→ Cu2+(aq)+ 2e- Determine which reaction will not occur.

Which outcome corresponds to the combination of calcium and carbonate ions shown in the following equation? Ca2+(aq)+ CO32-(aq)→ ?

Which of the following compounds is not an Arrhenius acid?

The balanced net ionic equation for the reaction H2SO4(aq)+ 2 KOH(aq)→ K2SO4(aq)+ 2 H2O(l)is ________.

Write a balanced net ionic equation for the reaction of Pb(NO3)2(aq)with NaI(aq).

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Three different substances,A₂X,A₂Y,and A₂Z,were dissolved in water with the following results.(Water molecules are omitted for clarity. )Which of the substances is the strongest electrolyte,and which is the weakest?

The balanced net ionic equation for the reaction Li₂SO₄(aq)+ Ca(NO₃)₂(aq)→ CaSO₄(s)+ 2 LiNO₃(aq)is ________.

In the reaction 2 H₂O₂(l)→ 2 H₂O(l)+ O₂(g)oxygen is

What is the oxidation number change for the manganese atom in the following unbalanced reduction half reaction? MnO₄^-(aq)+ H⁺(aq)→ Mn²⁺(aq)+ H₂O(l)

What reagent would distinguish between Ba²⁺ and Pb²⁺?

Which elementwill not react with liquid water but will react with aqueous H⁺ ions and steam?

When 220.mL of 1.50 × 10^-4M hydrochloric acid is added to 125 mL of 1.75 × 10^-4 M Mg(OH)₂,the resulting solution will be

The reaction C₆H₁₂O₆(s)+ 6 O₂(g)→ 6 CO₂(g)+ 6 H₂O(l)is best classified as a(n)

The reaction 2 HNO₃(aq)+ Ba(OH)₂(aq)→ Ba(NO₃)₂(aq)+ 2 H₂O(l)is best classified as a(n)

Which species functions as the reducing agent in the following reduction-oxidation reaction? 2 P(s)+ 3 Br₂(l)→ 2 PBr₃(l)

How many mL of a 0.175 M FeCl₃solution are needed to make 550.mL of a solution that is 0.300 M in Cl^- ion?

Using the following portion of the activity series for oxidation half reactions Ca(s)→ Ca²⁺(aq)+ 2e^- Mg(s)→ Mg²⁺(aq)+ 2e^- Zn(s)→ Zn²⁺(aq)+ 2e^- Cu(s)→ Cu²⁺(aq)+ 2e^- Determine which reaction will not occur.

Which outcome corresponds to the combination of calcium and carbonate ions shown in the following equation? Ca²⁺(aq)+ CO₃^2-(aq)→ ?

The balanced net ionic equation for the reaction H₂SO₄(aq)+ 2 KOH(aq)→ K₂SO₄(aq)+ 2 H₂O(l)is ________.

Write a balanced net ionic equation for the reaction of Pb(NO₃)₂(aq)with NaI(aq).