Question 1

Which of the following equations is not a redox reaction?

Accepted Answer

A) 2H2(g)+ O2(g)→ 2H2O(l) 
B) Zn(s)+ H2SO4(aq)→ ZnSO4(aq)+ H2(g) 
C) H2O(l)+ NH3(g)→ NH4 +(aq)+ OH-(aq) 
D) 6FeSO4(aq)+ K2Cr2O7(aq)+ 7H2SO4(aq)→ Cr2(SO4)3(aq)+ 3Fe2(SO4)3(aq)+ K2SO4(aq)+ 7H2O(l) 
E) Cl2(g)+ 2KBr(aq)→ Br2(l)+ 2KCl(aq) 
A) 2H2(g)+ O2(g)→ 2H2O(l) 
B) Zn(s)+ H2SO4(aq)→ ZnSO4(aq)+ H2(g) 
C) H2O(l)+ NH3(g)→ NH4 +(aq)+ OH-(aq) 
D) 6FeSO4(aq)+ K2Cr2O7(aq)+ 7H2SO4(aq)→ Cr2(SO4)3(aq)+ 3Fe2(SO4)3(aq)+ K2SO4(aq)+ 7H2O(l) 
E) Cl2(g)+ 2KBr(aq)→ Br2(l)+ 2KCl(aq)

Question 2

If aqueous solutions of Mg(C2H3O2)2 and LiOH are mixed,which insoluble precipitate is formed?

Accepted Answer

A) LiC2H3O2 
B) Li(C2H3O2)2 
C) MgOH 
D) Mg(OH)2 
E) CH3OH 
A) LiC2H3O2 
B) Li(C2H3O2)2 
C) MgOH 
D) Mg(OH)2 
E) CH3OH

Question 3

Write a short definition for a Brønsted base.

Accepted Answer

A Brønsted

Question 4

A 350-mL sample of 0.276 M HNO3 is partially neutralized by 125 mL of 0.120 M Ca(OH)2.Find the concentration of nitric acid in the resulting solution.

Accepted Answer

A) 0.0429 M 
B) 0.140 M 
C) 0.172 M 
D) 0.203 M 
E) 0.773 M 
A) 0.0429 M 
B) 0.140 M 
C) 0.172 M 
D) 0.203 M 
E) 0.773 M

Question 5

Which of the following is insoluble in water?

Accepted Answer

A) Li2CO3 
B) NaOH 
C) PbCl2 
D) Ba(OH)2 
E) (NH4)2S 
A) Li2CO3 
B) NaOH 
C) PbCl2 
D) Ba(OH)2 
E) (NH4)2S

Question 6

Vinegar is a solution of acetic acid,HC2H3O2 ,dissolved in water.A 5.54-g sample of vinegar was Vneutralized by 30.10 mL of 0.100 M NaOH.What is the percent by weight of acetic acid in the vinegar?

Accepted Answer

A) 0.0543% 
B) 1.08% 
C) 3.26% 
D) 5.43% 
E) 9.23% 
A) 0.0543% 
B) 1.08% 
C) 3.26% 
D) 5.43% 
E) 9.23%

Question 7

Which one of the following substances is the strongest electrolyte?

Accepted Answer

A) CO 
B) CH3Cl 
C) CH4 
D) C2H5OH 
E) HCl 
A) CO 
B) CH3Cl 
C) CH4 
D) C2H5OH 
E) HCl

Question 8

OH‾ is called the ____________________ ___________________.

Accepted Answer

The answer of OH‾ is called the ____________________ ___________________....

Question 9

What is the pH of a 0.056 M HNO3 solution?

Accepted Answer

A) 0.056 
B) 1.25 
C) 12.75 
D) 2.88 
E) 11.11 
A) 0.056 
B) 1.25 
C) 12.75 
D) 2.88 
E) 11.11

Question 10

Which salt is formed in the neutralization reaction of hydrochloric acid with calcium hydroxide?

Accepted Answer

A) CaO 
B) CaCl 
C) CaH2 
D) CaCl2 
E) NaCl 
A) CaO 
B) CaCl 
C) CaH2 
D) CaCl2 
E) NaCl

Question 11

Identify NaOH as an electrolyte or nonelectrolyte.

Accepted Answer

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

Question 12

A(n)_______________________ reaction is a reaction between an acid and a base which produces water and a salt consisting of cations from the base and anions from the acid.

Accepted Answer

The answer of A(n)_______________________ reaction is a reaction between an...

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

The oxidation number for a pure element is always zero.

Accepted Answer

A) True 
 B)False

Question 15

Which equation describes a redox reaction?

Accepted Answer

A) 2Al(s)+ 3H2SO4(aq)→ Al2(SO4)3(aq)+ 3H2(g) 
B) 2KBr(aq)+ Pb(NO3)2(aq)→ 2KNO3(aq)+ PbBr2(s) 
C) CaBr2(aq)+ H2SO4(aq)→ CaSO4(s)+ 2HBr(g) 
D) H+(aq)+ OH-(aq)→ H2O(l) 
E) CO32-(aq)+ HSO4-(aq)→ HCO3-(aq)+ SO42-(aq) 
A) 2Al(s)+ 3H2SO4(aq)→ Al2(SO4)3(aq)+ 3H2(g) 
B) 2KBr(aq)+ Pb(NO3)2(aq)→ 2KNO3(aq)+ PbBr2(s) 
C) CaBr2(aq)+ H2SO4(aq)→ CaSO4(s)+ 2HBr(g) 
D) H+(aq)+ OH-(aq)→ H2O(l) 
E) CO32-(aq)+ HSO4-(aq)→ HCO3-(aq)+ SO42-(aq)

Question 16

A(n)___________ ____________ is the name given for the substance that causes another substance to

Accepted Answer

undergo ox

Question 17

Based on the solubility rules,which of these processes will occur when solutions of ZnSO4(aq)and MgCl2(aq)are mixed?

Accepted Answer

A) ZnCl2 will precipitate; Mg2+ and SO42- are spectator ions. 
B) ZnSO4 will precipitate; Mg2+ and Cl- are spectator ions. 
C) MgSO4 will precipitate; Zn2+ and Cl- are spectator ions. 
D) MgCl2 will precipitate; Zn2+ and SO42- are spectator ions. 
E) No precipitate will form. 
A) ZnCl2 will precipitate; Mg2+ and SO42- are spectator ions. 
B) ZnSO4 will precipitate; Mg2+ and Cl- are spectator ions. 
C) MgSO4 will precipitate; Zn2+ and Cl- are spectator ions. 
D) MgCl2 will precipitate; Zn2+ and SO42- are spectator ions. 
E) No precipitate will form.

Question 18

The oxidation number for oxygen in O2 is zero.

Accepted Answer

A) True 
 B)False

Question 19

A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution.If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid,what is the molar concentration of the acid in the original solution?

Accepted Answer

A) 0.243 M 
B) 0.200 M 
C) 1.13 M 
D) 0.563 M 
E) 0.0313 M 
A) 0.243 M 
B) 0.200 M 
C) 1.13 M 
D) 0.563 M 
E) 0.0313 M

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

Exam 4: Reactions in Aqueous Solutions

Which of the following equations is not a redox reaction?

If aqueous solutions of Mg(C2H3O2)2 and LiOH are mixed,which insoluble precipitate is formed?

Write a short definition for a Brønsted base.

A 350-mL sample of 0.276 M HNO3 is partially neutralized by 125 mL of 0.120 M Ca(OH)2.Find the concentration of nitric acid in the resulting solution.

Which of the following is insoluble in water?

Vinegar is a solution of acetic acid,HC2H3O2 ,dissolved in water.A 5.54-g sample of vinegar was Vneutralized by 30.10 mL of 0.100 M NaOH.What is the percent by weight of acetic acid in the vinegar?

Which one of the following substances is the strongest electrolyte?

OH‾ is called the ____________________ ___________________.

What is the pH of a 0.056 M HNO3 solution?

Which salt is formed in the neutralization reaction of hydrochloric acid with calcium hydroxide?

Identify NaOH as an electrolyte or nonelectrolyte.

A(n)_______________________ reaction is a reaction between an acid and a base which produces water and a salt consisting of cations from the base and anions from the acid.

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

The oxidation number for a pure element is always zero.

Which equation describes a redox reaction?

A(n)___________ ____________ is the name given for the substance that causes another substance to

Based on the solubility rules,which of these processes will occur when solutions of ZnSO4(aq)and MgCl2(aq)are mixed?

The oxidation number for oxygen in O2 is zero.

A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution.If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid,what is the molar concentration of the acid in the original solution?

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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Filters

If aqueous solutions of Mg(C₂H₃O₂)₂ and LiOH are mixed,which insoluble precipitate is formed?

A 350-mL sample of 0.276 M HNO₃ is partially neutralized by 125 mL of 0.120 M Ca(OH)₂.Find the concentration of nitric acid in the resulting solution.

Vinegar is a solution of acetic acid,HC₂H₃O₂ ,dissolved in water.A 5.54-g sample of vinegar was Vneutralized by 30.10 mL of 0.100 M NaOH.What is the percent by weight of acetic acid in the vinegar?

OH‾ is called the __ _.

What is the pH of a 0.056 M HNO₃ solution?

A(n)_ __ is the name given for the substance that causes another substance to

Based on the solubility rules,which of these processes will occur when solutions of ZnSO₄(aq)and MgCl₂(aq)are mixed?

The oxidation number for oxygen in O₂ is zero.

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