Question 1

The mixing of which pair of reactants will result in a precipitation reaction?

Accepted Answer

A) CsCl(aq)+ KOH(aq) 
B) HCl(aq)+ Ca(OH)2(aq) 
C) Li2CO3(aq)+ Ca(NO3)2(aq) 
D) NaClO4(aq)+ NH4Cl(aq) 
A) CsCl(aq)+ KOH(aq) 
B) HCl(aq)+ Ca(OH)2(aq) 
C) Li2CO3(aq)+ Ca(NO3)2(aq) 
D) NaClO4(aq)+ NH4Cl(aq)

Question 2

In which compound is the oxidation state of hydrogen not +1?

Accepted Answer

A) H2S  
B) H2O2 
C) KH 
D) KHSO4 
A) H2S  
B) H2O2 
C) KH 
D) KHSO4

Question 3

Write a balanced net ionic equation for the reaction of CaI2(aq)with K2S(aq).

Accepted Answer

A) CaI2(aq)+ K2S(aq)→ CaS (aq)+ 2 KI(aq) 
B) Ca2+(aq)+ 2 I-(aq)+ 2 K+(aq)+ S2-(aq)→ CaS(s)+ 2 KI(aq) 
C) Ca2+(aq)+ S2-(aq)→ CaS(s) 
D) Ca2+(aq)+ 2 I-(aq)+ 2 K+(aq)+ S2-(aq)→ CaS(s)+ 2 KI(s) 
A) CaI2(aq)+ K2S(aq)→ CaS (aq)+ 2 KI(aq) 
B) Ca2+(aq)+ 2 I-(aq)+ 2 K+(aq)+ S2-(aq)→ CaS(s)+ 2 KI(aq) 
C) Ca2+(aq)+ S2-(aq)→ CaS(s) 
D) Ca2+(aq)+ 2 I-(aq)+ 2 K+(aq)+ S2-(aq)→ CaS(s)+ 2 KI(s)

Question 4

How many H+ ions can the acid CH3CO2H donate per molecule?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 5

Based on the positions in the periodic table of elements A,B,and C,which of the following reactions would you expect to occur?

Accepted Answer

A) A2+ + B → A + B2+ 
B) B2+ + C → B + C2+ 
C) C2+ + A → C + A2+ 
D) None of the reactions would be expected to occur. 
A) A2+ + B → A + B2+ 
B) B2+ + C → B + C2+ 
C) C2+ + A → C + A2+ 
D) None of the reactions would be expected to occur.

Question 6

Water (H2O),methyl alcohol (CH3OH),ethyl alcohol (CH3CH2OH),ethylene glycol (HOCH2CH2OH),and sucrose (C12H22O11)are commonly classified as

Accepted Answer

A) bases. 
B) nonelectrolytes. 
C) strong electrolytes. 
D) weak electrolytes. 
A) bases. 
B) nonelectrolytes. 
C) strong electrolytes. 
D) weak electrolytes.

Question 7

How many milliliters of a 9.0 M H2SO4 solution are needed to make 0.45 L of a 3.5 M solution?

Accepted Answer

A) 0.18 mL 
B) 1.2 mL 
C) 180 mL 
D) 1200 mL 
A) 0.18 mL 
B) 1.2 mL 
C) 180 mL 
D) 1200 mL

Question 8

What is the concentration of FeCl3 in a solution prepared by dissolving 10.0 g of FeCl3 in enough water to make 275 mL of solution?

Accepted Answer

A) 2.24 × 10-4 M 
B) 0.224 M 
C) 4.46 M 
D) 4.46 × 103 M 
A) 2.24 × 10-4 M 
B) 0.224 M 
C) 4.46 M 
D) 4.46 × 103 M

Question 9

Based on the activity series,which metal dissolves in hydrochloric acid to produce hydrogen gas,but does not react with steam or liquid water?

Accepted Answer

A) Mg 
B) Hg 
C) Sn 
D) K 
A) Mg 
B) Hg 
C) Sn 
D) K

Question 10

Using the following portion of the activity series for oxidation half reactions Mg(s)→ Mg2+(aq)+ 2e-
Co(s)→ Co2+(aq)+ 2e-
Cu(s)→ Cu2+(aq)+ 2e-
 indicate which pairs of reactions will occur.

Accepted Answer

A) Cu(s)with Co2+(aq)and Co(s)with Mg2+(aq) 
B) Mg(s)with Cu2+(aq)and Co2+(aq)with Mg2+(aq) 
C) Mg(s)with Cu(s)and Co(s)with Cu(s) 
D) Mg(s)with Co2+(aq)and Co(s)with Cu2+(aq) 
A) Cu(s)with Co2+(aq)and Co(s)with Mg2+(aq) 
B) Mg(s)with Cu2+(aq)and Co2+(aq)with Mg2+(aq) 
C) Mg(s)with Cu(s)and Co(s)with Cu(s) 
D) Mg(s)with Co2+(aq)and Co(s)with Cu2+(aq)

Question 11

What is the molar concentration of sulfate ions in a 0.450 M K2SO4 solution?

Accepted Answer

A) 0.225 M 
B) 0.450 M 
C) 0.900 M 
D) 1.35 M 
A) 0.225 M 
B) 0.450 M 
C) 0.900 M 
D) 1.35 M

Question 12

Box (1)represents 1.0 mL of a solution of particles at a given concentration.  
-Which of the boxes (2)-(5)represents 1.0 mL of the solution that results after (1)has been diluted by adding enough solvent to make 5.0 mL of solution?

Accepted Answer

A) box (2) 
B) box (3) 
C) box (4) 
D) box (5) 
A) box (2) 
B) box (3) 
C) box (4) 
D) box (5)

Question 13

How many milliliters of 0.260 M Na2S are needed to react with 45.00 mL of 0.315 M AgNO3? Na2S(aq)+ 2 AgNO3(aq)→ 2 NaNO3(aq)+ Ag2S(s)

Accepted Answer

A) 27.3 mL 
B) 54.5 mL 
C) 74.3 mL 
D) 109 mL 
A) 27.3 mL 
B) 54.5 mL 
C) 74.3 mL 
D) 109 mL

Question 14

Which pair of compounds is insoluble in water?

Accepted Answer

A) AgNO3 and KNO3 
B) Na2S and CuS 
C) (NH4)2SO4 and AgI 
D) PbSO4 and Pb3(PO4)2 
A) AgNO3 and KNO3 
B) Na2S and CuS 
C) (NH4)2SO4 and AgI 
D) PbSO4 and Pb3(PO4)2

Question 15

The reaction shown below is classified as a(n)________ reaction.
Pb(OH)2(s)+ 2 HNO3(aq)→ Pb(NO3)2(aq)+ 2 H2O(l)

Accepted Answer

acid-base

Question 16

The number of moles of CaCl2 in 25.0 mL of 0.222 M CaCl2 is ________.

Accepted Answer

Question 17

Write a balanced net ionic equation for the reaction of H2SO4(aq)with Ba(OH)2(aq).

Accepted Answer

A) H2SO4(aq)+ Ba(OH)2(aq)→ BaSO4(s)+ 2 H2O(l) 
B) 2 H+(aq)+ SO42-(aq)+ Ba2+(aq)+ 2 OH-(aq)→ BaSO4(s)+ 2 H2O(l) 
C) H+(aq)+ OH+(aq)→ H2O(l) 
D) Ba2+(aq)+ SO42-(aq)→ BaSO4(s) 
A) H2SO4(aq)+ Ba(OH)2(aq)→ BaSO4(s)+ 2 H2O(l) 
B) 2 H+(aq)+ SO42-(aq)+ Ba2+(aq)+ 2 OH-(aq)→ BaSO4(s)+ 2 H2O(l) 
C) H+(aq)+ OH+(aq)→ H2O(l) 
D) Ba2+(aq)+ SO42-(aq)→ BaSO4(s)

Question 18

Assume that the conductivity of a solution depends only on the total concentration of dissolved ions and that you measure the conductivity of three different solutions while performing titrations in which
I.50.00 mL of 0.100 M aqueous CHS1U1B13S1U1B0COS1U1B12S1U1B0H is titrated by addition of 0.100 M NaOH.
II.50.00 mL of 0.100 M aqueous NaBr is titrated by addition of 0.100 M AgNOS1U1B13S1U1B0.
III.50.00 mL of 0.100 M aqueous CaClS1U1B12S1U1B0 is titrated by addition of 0.100 M NaS1U1B12S1U1B0COS1U1B13S1U1B0.  
-Which of the above graphs corresponds to titration II?

Accepted Answer

A) graph (1) 
B) graph (2) 
C) graph (3) 
D) None of the graphs 
A) graph (1) 
B) graph (2) 
C) graph (3) 
D) None of the graphs

Question 19

H Br ,HCl ,H ClO4,K Br ,and NaCl  are all classified as

Accepted Answer

A) acids. 
B) nonelectrolytes. 
C) strong electrolytes. 
D) weak electrolytes. 
A) acids. 
B) nonelectrolytes. 
C) strong electrolytes. 
D) weak electrolytes.

Question 20

The mixing of which pair of reactants will result in a precipitation reaction?

Accepted Answer

A) Ni(NO3)2(aq)+ Na2CO3(aq) 
B) K2SO4(aq)+ Cu(NO3)2(aq) 
C) NaClO4(aq)+ (NH4)2S(aq) 
D) NH4Br(aq)+ NH4I(aq) 
A) Ni(NO3)2(aq)+ Na2CO3(aq) 
B) K2SO4(aq)+ Cu(NO3)2(aq) 
C) NaClO4(aq)+ (NH4)2S(aq) 
D) NH4Br(aq)+ NH4I(aq)

Exam 4: Reactions in Aqueous Solutions

The mixing of which pair of reactants will result in a precipitation reaction?

In which compound is the oxidation state of hydrogen not +1?

Write a balanced net ionic equation for the reaction of CaI2(aq)with K2S(aq).

How many H+ ions can the acid CH3CO2H donate per molecule?

Based on the positions in the periodic table of elements A,B,and C,which of the following reactions would you expect to occur?

Water (H2O),methyl alcohol (CH3OH),ethyl alcohol (CH3CH2OH),ethylene glycol (HOCH2CH2OH),and sucrose (C12H22O11)are commonly classified as

How many milliliters of a 9.0 M H2SO4 solution are needed to make 0.45 L of a 3.5 M solution?

What is the concentration of FeCl3 in a solution prepared by dissolving 10.0 g of FeCl3 in enough water to make 275 mL of solution?

Based on the activity series,which metal dissolves in hydrochloric acid to produce hydrogen gas,but does not react with steam or liquid water?

Using the following portion of the activity series for oxidation half reactions Mg(s)→ Mg2+(aq)+ 2e- Co(s)→ Co2+(aq)+ 2e- Cu(s)→ Cu2+(aq)+ 2e- indicate which pairs of reactions will occur.

What is the molar concentration of sulfate ions in a 0.450 M K2SO4 solution?

Box (1)represents 1.0 mL of a solution of particles at a given concentration. -Which of the boxes (2)-(5)represents 1.0 mL of the solution that results after (1)has been diluted by adding enough solvent to make 5.0 mL of solution?

How many milliliters of 0.260 M Na2S are needed to react with 45.00 mL of 0.315 M AgNO3? Na2S(aq)+ 2 AgNO3(aq)→ 2 NaNO3(aq)+ Ag2S(s)

Which pair of compounds is insoluble in water?

The reaction shown below is classified as a(n)________ reaction. Pb(OH)2(s)+ 2 HNO3(aq)→ Pb(NO3)2(aq)+ 2 H2O(l)

The number of moles of CaCl2 in 25.0 mL of 0.222 M CaCl2 is ________.

Write a balanced net ionic equation for the reaction of H2SO4(aq)with Ba(OH)2(aq).

H Br ,HCl ,H ClO4,K Br ,and NaCl are all classified as

The mixing of which pair of reactants will result in a precipitation reaction?

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Write a balanced net ionic equation for the reaction of CaI₂(aq)with K₂S(aq).

How many H⁺ ions can the acid CH₃CO₂H donate per molecule?

Water (H₂O),methyl alcohol (CH₃OH),ethyl alcohol (CH₃CH₂OH),ethylene glycol (HOCH₂CH₂OH),and sucrose (C₁₂H₂₂O₁₁)are commonly classified as

How many milliliters of a 9.0 M H₂SO₄ solution are needed to make 0.45 L of a 3.5 M solution?

What is the concentration of FeCl₃ in a solution prepared by dissolving 10.0 g of FeCl₃ in enough water to make 275 mL of solution?

Using the following portion of the activity series for oxidation half reactions Mg(s)→ Mg²⁺(aq)+ 2e^- Co(s)→ Co²⁺(aq)+ 2e^- Cu(s)→ Cu²⁺(aq)+ 2e^- indicate which pairs of reactions will occur.

What is the molar concentration of sulfate ions in a 0.450 M K₂SO₄ solution?

How many milliliters of 0.260 M Na₂S are needed to react with 45.00 mL of 0.315 M AgNO₃? Na₂S(aq)+ 2 AgNO₃(aq)→ 2 NaNO₃(aq)+ Ag₂S(s)

The reaction shown below is classified as a(n)________ reaction. Pb(OH)₂(s)+ 2 HNO₃(aq)→ Pb(NO₃)₂(aq)+ 2 H₂O(l)

The number of moles of CaCl₂ in 25.0 mL of 0.222 M CaCl₂ is ________.

Write a balanced net ionic equation for the reaction of H₂SO₄(aq)with Ba(OH)₂(aq).

HBr,HCl,HClO₄,KBr,and NaCl are all classified as