Chemistry & Chemical Reactivity 9th Edition by John C. Kotz – Test Bank

 

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Sample Test

Chapter_03_Chemical_Reactions

 

1. Nitroglycerin decomposes violently according to the balanced chemical equation below.
2 C3H5(NO3)3() → 3 N2(g) + 1/2 O2(g) + 6 CO2(g) + 5 H2O(g)
Which of the following statements concerning this reaction is/are CORRECT?

 

1.

Two moles of nitroglycerine will produce three moles of nitrogen and five moles of water.

 

2.

Four molecules of nitroglycerine will produced one molecule of oxygen and twelve molecules of carbon dioxide.

 

3.

Six grams of nitroglycerine will produce nine grams of nitrogen and fifteen grams of water.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 2

e.

1, 2, and 3

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJ3

 

2. The balanced chemical equation for the combustion of methane is:

CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)

Which of the following statements concerning this chemical equation is/are correct?

 

1.

One gram of methane gas reacts with two grams of dioxygen gas, producing one gram of carbon dioxide gas and two grams of gaseous water.

 

2.

One mole of methane gas reacts with two moles of dioxygen gas, producing one mole of carbon dioxide gas and two moles of gaseous water.

 

3.

One molecule of methane gas reacts with two molecules of dioxygen gas, producing one molecule of carbon dioxide gas and two molecules of gaseous water.

 

 

a.

1 only

b.

2 only

c.

2 and 3

d.

1 and 3

e.

1,2 and 3

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multi-Mode (Multiple choice)

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJA

 

3. What is the smallest whole number coefficient for sodium hydroxide when the following equation is balanced?
__Na2SO4 + __Al(OH)3 → __Al2(SO4)3 + __NaOH

 

a.

3

b.

1

c.

2

d.

4

e.

6

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

NOTES:  

OWL

QUESTION ID:  

JFND-GO4R-EC3D-KPKG

 

4. What are the smallest whole number coefficients the reactants and products when the following molecular equation is correctly balanced?
__NH3(g) +__O2(g) → __NO(g) + __H2O(g)

 

a.

3, 4, 3, 4

b.

1, 1, 1, 1

c.

2, 3, 2, 3

d.

4, 5, 4, 6

e.

3, 2, 3, 4

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

NOTES:  

OWL

QUESTION ID:  

JFND-GO4R-EC3D-KPKF

 

5. The complete combustion of undecane, C11H24, yields carbon dioxide and water:

__C11H24 + __O2 → __CO2 + __H2O

​

The smallest whole-number coefficient of oxygen in the balanced equation is

 

a.

18.

b.

19.

c.

17.

d.

15.

 

e.

16.

 

 

 

 

 

 

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multi-Mode (Multiple choice)

HAS VARIABLES:  

True

TOPICS:  

3.2 Balancing Chemical Equations

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-KPKR

 

6.

The illustration to the right represents a mixture of oxygen (red) and fluorine (green) molecules. If the molecules react to form OF2 according to the equation: O2 + 2F2 → 2OF2
How many molecules of OF2 will form?

 

 

a.

3

b.

5

c.

4

d.

2

e.

1

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

NOTES:  

OWL

QUESTION ID:  

JFND-GO4R-EC3D-KPKD

 

7. Which one of the following equations is properly balanced?

 

a.

CH3CHO + 3O2 → 2CO2 + 2H2O

 

b.

Sn + 4HNO3 → SnO2 + 4NO2 + 2H2O

 

c.

2Na2SO4 + 3Bi(NO3)3 → Bi2(SO4)3 + 9NaNO3

 

d.

Na2CO3 + 2H2SO4 → Na2SO4 + 2H2O + CO2

 

e.

NH4NO3 → 2H2O + N2

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJU

 

8. Which of the following equations is not balanced?

 

a.

2NaCl + Pb(NO3)2 → PbCl2 + 2NaNO3

 

b.

Fe3O4 + 3CO → 3Fe + 3CO2

 

c.

C12H22O11 + 12O2 → 12CO2 + 11H2O

 

d.

2Sb2OS2 + 10O2 → 2Sb2O5 + 4SO3

 

e.

(NH4)2Cr2O7 → N2 + 4H2O + Cr2O3

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJ1

 

9. The reaction of elemental chlorine with potassium iodide yields elemental iodine and potassium chloride. Write a balanced chemical equation for this reaction.

 

a.

Cl2(g) + 2 KI(s) → I2(s) + 2 KCl(s)

 

b.

Cl2(g) + KI2(s) → I2(s) + KCl2(s)

 

c.

Cl2(g) + 2 K2I(s) → I2(s) + 2 K2Cl(s)

 

d.

Cl2(g) + KI(s) → I(s) + KCl2(s)

 

e.

Cl(g) + KI(s) → I(s) + KCl(s)

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJT

 

10. Metals react with oxygen gas to produce oxides with the general formula MxOy. Write a balanced chemical equation for the reaction of titanium with oxygen to yield titanium(IV) oxide.

 

a.

Ti(s) + O2(g) → TiO2(s)

 

b.

4 Ti(s) + O2(g) → 2 Ti2O(s)

 

c.

Ti(s) + O(g) → TiO(s)

 

d.

8 Ti(s) + O2(g) → 2 Ti4O(s)

 

e.

2 Ti(s) + O2(g) → 2 TiO(s)

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJO

 

11. The products of the complete combustion of octane, C8H18, are carbon dioxide and water. Write a balanced chemical equation for this reaction.

 

a.

C8H18() → 8 C(s) + 9 H2(g)

 

b.

2 C8H18() + 25 O2(g) → 16 CO2(g) + 18 H2O(g)

 

c.

2 C8H18() + 17 O2(g) → 16 CO(g) + 18 H2O(g)

 

d.

C8H18() + 16 O2(g) → 8 CO2(g) + 9 H2(g)

 

e.

C8H18() + 25 O2(g) → 8 CO2(g) + 9 H2O(g)

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJZ

 

12. Which one of the statements below is false concerning the following reaction:

 

NH3(g) + H2O NH4+(aq) + OH−(aq)

 

 

a.

The double arrows indicate that ammonia, NH3, is only very slightly soluble in water.

 

b.

Ammonia partially reacts with water.

 

c.

When NH3 is added to H2O, NH4+ and OH− ions are produced in a 1:1 ratio.

 

d.

When solutions of NH4+ and OH– are mixed, some ammonia is produced.

 

e.

The reaction is reversible.

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.3 Introduction to Chemical Equilibrium

QUESTION ID:  

JFND-GO4R-EC3D-KPJS

 

13. What is the balanced chemical equation for the complete combustion of benzoic acid, C6H5CO2H, to form carbon dioxide and water?

 

a.

C6H5CO2H(s) → 6 C(s) + CO2(g) + 3 H2(g)

 

b.

2 C6H5CO2H(s) + 15 O2(g) → 14 CO2(g) + 6 H2O(g)

 

c.

C6H5CO2H(s) + O2(g) → CO2(g) + H2O(g)

 

d.

C6H5CO2H(s) → 7 CO2(g) + 3 H2O(g)

 

e.

C6H5CO2H(s) + 8 O2(g) → 7 CO2(g) + 3 H2O(g)

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.2 Balancing Chemical Equations

QUESTION ID:  

JFND-GO4R-EC3D-KPJI

 

14. Which of the following statements is/are CORRECT?

 

1.

A solution is a homogeneous mixture of two or more substances.

 

2.

A solute is a mixture of a solvent and a soluble compound.

 

3.

Aqueous solutions are solutions in which water is a solvent.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 2

e.

1 and 3

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-KPJW

 

15. Which of the following statements concerning electrolytes and nonelectrolytes is/are true?

 

1.

Some molecular substances are electrolytes.

 

2.

All electrolytes are ionic substances.

 

3.

Strong electrolytes partially ionize in solution.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 3

e.

2 and 3

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multi-Mode (Multiple choice)

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-COKN

 

16. Which of the following statements is/are CORRECT?

 

1.

Water soluble ionic compounds, such as NaCl, are strong electrolytes.

 

2.

Some molecular compounds, such as HCl, are strong electrolytes.

 

3.

Some molecular compounds, such as acetic acid, are weak electrolytes.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 2

e.

1, 2, and 3

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-COKB

 

17. Which one of the following compounds is a nonelectrolyte when dissolved in water?

 

a.

CCl4

b.

NaCH3CO2

c.

Cu(NO3)2

d.

CaCl2

e.

HCl

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-COJ3

 

18. Which of the following statements is/are CORRECT?

 

1.

Most ionic compounds containing nitrate ion are soluble in water.

 

2.

Most ionic compounds containing sulfate ion are insoluble in water.

 

3.

Most ionic compounds containing carbonate ion are soluble in water.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 2

e.

1, 2, and 3

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-COJA

 

19. Which of the following statements is/are CORRECT?

 

1.

Most ionic compounds containing phosphate ion are insoluble in water.

 

2.

Most ionic compounds containing potassium ion are insoluble in water.

 

3.

Most ionic compounds containing hydroxide ion are soluble in water.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 2

e.

1, 2, and 3

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-COKG

 

20. A precipitate is expected when an aqueous solution of potassium iodide is added to an aqueous solution of

 

a.

barium hydroxide.

 

b.

calcium nitrate.

 

c.

lead perchlorate.

 

d.

iron(II) chloride.

 

e.

sodium sulfate.

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COKF

 

21. Which of the following compounds is soluble in water?

 

a.

Hg2Cl2

b.

ZnS

c.

CoS

d.

Sc2O3

 

e.

Cs2S

 

 

 

 

 

 

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COKR

 

22. Which of the following compounds is insoluble in water?

 

a.

NH4Br

b.

KBr

c.

CuCl2

d.

NaBr

 

e.

AgBr

 

 

 

 

 

 

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COKD

 

23. Which of the following compounds is soluble in water?

 

a.

Na2S

b.

FeS

c.

NiS

d.

Mn2S3

 

e.

Hg2I2

 

 

 

 

 

 

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COJU

 

24. All of the following compounds are insoluble in water except ____.

 

a.

Ni(ClO4)2

b.

Fe(OH)3

c.

PbCrO4

d.

BaCO3

e.

PbF2

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-COJ1

 

25. Which of the following reactions best describes the dissolution of solid NaOH(s) in water?

 

a.

NaOH(s) + H2O(l) → NaO–(aq) + H3O+(aq)

 

b.

NaOH(s) → NaO+(aq) + H–(aq)

 

c.

NaOH(s) → NaO–(aq) + H+(aq)

 

d.

NaOH(s) → Na+(aq) + OH–(aq)

 

e.

NaOH(s) → NaOH(aq)

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-COJT

 

26. Which anion will form a precipitate with Ca2+?

 

a.

Br–

b.

Cl–

c.

C2H3O2–

d.

OH–

 

e.

none

 

 

 

 

 

 

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COJO

 

27. Which anion will form a precipitate with Cs+?

 

a.

C2H3O2–

b.

Cl–

c.

SO42–

d.

S2–

e.

none

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COJZ

 

28. Which of the following ions is most likely to form an insoluble compound when combined with sulfate ion?

 

a.

S2–

b.

Sr2+

c.

K+

d.

Na+

e.

I–

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COJS

 

29. All of the following compounds are soluble in water except ____.

 

a.

K2CO3

b.

Cs2CO3

c.

RuCO3

d.

(NH4)2CO3

 

e.

Li2CO3

 

 

 

 

 

 

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.4 Aqueous Solution

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COJI

 

30. A precipitate will form when aqueous Pb(NO3)2 is added to an aqueous solution of ____.

 

a.

NaI

b.

Pb(ClO4)2

c.

KNO3

d.

NaCH3CO2

e.

Cu(NO3)2

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-COJW

 

31. A precipitate will form when aqueous nickel(II) chloride is added to an aqueous solution of ____.

 

a.

NaBr

b.

Na2SO4

c.

SrI2

d.

KOH

e.

Cu(NO3)2

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CO1N

 

32. If an aqueous solution of ____ is added to a mixture of Pb2+ and Ba2+, the lead ion will precipitate, but the barium ion will remain in solution.

 

a.

KCO3

b.

K3PO4

c.

Ca(CH3CO2)2

d.

Na2SO4

e.

NaOH

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CO1B

 

33. If an aqueous solution of ____ is added to a mixture of F– and SO42–, the fluoride ion will precipitate, but the sulfate ion will remain in solution.

 

a.

MgNO3

b.

AlCl3

c.

HNO3

d.

LiBr

e.

Pb(ClO4)2

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-COT3

 

34. When aqueous solutions of calcium iodide, CaI2, and silver nitrate, AgNO3, are combined, which of the following statements below describes what occurs:

 

a.

A precipitate of Ca(NO3)2 forms

b.

A precipitate of AgI forms

 

c.

No precipitate will form

d.

Both Ca(NO3)2 and AgI precipitate

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

NOTES:  

OWL

QUESTION ID:  

JFND-GO4R-EC3D-COTA

 

35. What products result from mixing aqueous solutions of Co(NO3)2(aq) and NaOH(aq)?

 

a.

Co(OH)2(s) and NaNO3(s)

 

b.

Co2(OH)2(aq) and NaNO3(aq)

 

c.

Co(OH)2(s), N2(g), and H2O(l)

 

d.

Co(OH)2(aq) and NaNO3(s)

 

e.

Co(OH)2(s), Na+(aq), and NO3−(aq)

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multi-Mode (Multiple choice)

HAS VARIABLES:  

True

TOPICS:  

3.5 Precipitation Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CO1G

 

36. Which of the following combinations will produce a precipitate?

 

1.

AgNO3(aq) and HCl(aq)

 

2.

FeCl3(aq) and Na2CO3(aq)

 

3.

NaOH(aq) and K3PO4(aq)

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 2

e.

1, 2, and 3

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multi-Mode (Multiple choice)

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CO1F

 

37. Write a balanced chemical equation for the reaction of aqueous solutions of sodium sulfide and zinc(II) chloride.

 

a.

No reaction occurs.

 

b.

Na2S(aq) + ZnCl2(aq) → Na2Zn(aq) + SCl2(g)

 

c.

Na2S(aq) + ZnCl2(aq) → ZnS(s) + 2 NaCl(aq)

 

d.

Na2S(aq) + ZnCl2(aq) → Na2Zn(s) + SCl2(aq)

 

e.

Na2S(aq) + ZnCl2(aq) → ZnS(s) + 2 NaCl(s)

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CO1R

 

38. Write a balanced chemical equation for the reaction of aqueous solutions of magnesium chloride and potassium phosphate.

 

a.

3 MgCl2(aq) + 2 K3PO4(aq) → Mg3(PO4)2(s) + 6 KCl(aq)

 

b.

MgCl2(aq) + 2 KPO4(aq) → Mg(PO4)2(s) + 2 KCl(aq)

 

c.

MgCl(aq) + KPO4(aq) → MgPO4(s) + KCl(aq)

 

d.

MgCl2(aq) + K3PO4(aq) → K3Mg(s) + PO4Cl2(aq)

 

e.

3 MgCl2(aq) + 2 K3PO4(aq) → 3 K2Mg(s) + 2 PO4Cl3(aq)

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CO1D

 

39. Which equation best represents the balanced net ionic equation for the reaction that occurs when aqueous solutions of lithium phosphate and magnesium nitrate are mixed?

 

a.

3Mg2+(aq) + 2PO43–(aq) → Mg3(PO4)2(s)

 

b.

2Li3PO4(aq) + 3Mg(NO3)2(aq) → Mg3(PO4)2(s) + 6LiNO3(aq)

 

c.

3Mg2+(aq) + 2PO43–(aq) → Mg3(PO4)2(aq)

 

d.

2Li+(aq) + Mg(NO3)2(aq) → 2LiNO3(aq) + Mg2+(aq)

 

e.

2Li3PO4(aq) + 3Mg2+(aq) → Mg3(PO4)2(s) + (Li+)6(aq)

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.5 Precipitation Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COTU

 

40. What is the net ionic equation for the reaction of aqueous sodium hydroxide and aqueous iron(II) chloride?

 

a.

Fe2+(aq) + 2 Cl–(aq) → FeCl2(s)

 

b.

Na+(aq) + Cl–(aq) → NaCl(s)

 

c.

Fe2+(aq) + 2 OH–(aq) → Fe(OH)2(s)

 

d.

Na+(aq) + OH–(aq) → NaOH(s)

 

e.

Fe2+(aq) + OH–(aq) → FeOH+(s)

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-COT1

 

41. Which of the following would not be depicted as the individual ions on the reactant side of a complete ionic reaction?

 

a.

NaOH

b.

SrCO3

c.

Sr(NO3)2

d.

HI

 

e.

Cr(NO3)3

 

 

 

 

 

 

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.5 Precipitation Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COTT

 

42. Which of the following would not be depicted as the individual ions on the reactant side of a complete ionic reaction?

 

a.

RbOH

b.

CoCl3

c.

MnCl2

d.

HCl

 

e.

CH3COOH

 

 

 

 

 

 

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.5 Precipitation Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COTO

 

43. When solutions of barium iodide and sodium sulfate are mixed, the spectator ions in the resulting precipitation reaction are

 

a.

both Na+ and I–.

 

b.

only SO42–.

 

c.

only I–.

 

d.

only Na+.

 

e.

only Ba2+.

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.5 Precipitation Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COTZ

 

44. Which equation best represents the net ionic reaction that occurs when an aqueous solution of barium iodide is mixed with an aqueous solution of lithium sulfate?

 

a.

No net reaction occurs.

 

b.

Ba2+(aq) + SO42–(aq) → BaSO4(s)

 

c.

BaI2(aq) + Li2SO4(aq)→ BaSO4(s)+ 2LiI(aq)

 

d.

2H+(aq) + 2I–(aq) → 2HI(g)

 

e.

Ba2+(aq) + 2I–(aq) + 2Li+(aq) + SO42–(aq) → BaSO4(s) + 2LiI(aq)

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.5 Precipitation Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COTS

 

45. Which of the following is a weak base in aqueous solution?

 

a.

RbOH

b.

KCl

c.

HBr

d.

Ca(OH)2

e.

NH3

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-COTI

 

46. Which of the following compounds is a weak acid in aqueous solution?

 

a.

HCl

b.

H2SO4

c.

HNO3

d.

HClO4

e.

H3PO4

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-COTW

 

47. Which of the following is a strong acid in aqueous solution?

 

a.

HI

 

b.

NH3

 

c.

HOCH2CH2OH

 

d.

H3PO4

 

e.

Ba(OH)2

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQNN

 

48. Which of the following is a strong base in aqueous solution?

 

a.

CH3COOH

 

b.

Ca(OH)2

 

c.

HOCH2CH2OH

 

d.

HClO4

 

e.

NH3

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQNB

 

49. Nitric acid is the product of the reaction of ____ and H2O.

 

a.

SO3

b.

NH3

c.

NO2

d.

N2

e.

N3–

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CQB3

 

50. What base results when K2O reacts with water?

 

a.

KH(aq)

b.

H3O+(aq)

c.

O2-(aq)

d.

KO–(aq)

e.

KOH(aq)

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQBA

 

51. Write a balanced equation for the reaction that occurs when hydrogen sulfate ion behaves as a Brønsted-Lowry acid in water.

 

a.

HSO4–(aq) + H2O() H2SO4(aq) + H3O+(aq)

 

b.

HSO4–(aq) + H2O() SO42–(aq) + H3O+(aq)

 

c.

HSO4–(aq) + H2O() H2SO4(aq) + OH–(aq)

 

d.

H2SO4(aq) + H2O() HSO4–(aq) + H3O+(aq)

 

e.

SO42–(aq) + H2O() HSO4–(aq) + OH–(aq)

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CQNG

 

52. What is the balanced equation for carbonate ion (CO32–) acting as a Brønsted base in a reaction with water?

 

a.

CO32–(aq) + H2O() H2CO42–(aq)

 

b.

CO32–(aq) + H2O() CO2(g) + 2 OH–(aq)

 

c.

CO32–(aq) + 2 H2O() HCO3–(aq) + H3O+(aq)

 

d.

CO32–(aq) + H2O() HCO3–(aq) + OH–(aq)

 

e.

CO32–(aq) + 3 H2O() CO44–(aq) + 2 H3O+(aq)

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CQNF

 

53. What is the net ionic equation for the neutralization of hydroiodic acid with aqueous potassium hydroxide?

 

a.

H+(aq) + I–(aq) + K+(aq) + OH–(aq) → HI(aq) + KOH(aq)

 

b.

H+(aq) + I–(aq) + K+(aq) + OH–(aq) → KI(aq) + H2O()

 

c.

H+(aq) + OH–(aq) → H2O()

 

d.

HI(aq) + KOH(aq) → KI(aq) + H2O()

 

e.

HI(aq) + K+(aq) + OH–(aq) → KI(aq) + H2O()

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQNR

 

54. The net ionic equation for the reaction between aqueous ammonia and hydrochloric acid is

 

a.

HCl(aq) + NH3(aq) → NH4Cl(aq).

 

b.

HCl(aq) + OH–(aq) → Cl–(aq) + H2O().

 

c.

H+(aq) + Cl–(aq) + NH3(aq) → NH4+(aq) + Cl–(aq).

 

d.

H+(aq) + OH–(aq) → H2O().

 

e.

H+(aq) + NH3(aq) → NH4+(aq).

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQND

 

55. Which of the following is a weak electrolyte in aqueous solution?

 

a.

NaOH

b.

NH3

c.

Mg(OH)2

d.

RbOH

e.

Sr(OH)2

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQBU

 

56. In the reaction of acetic acid with aqueous lithium hydroxide, what is the spectator ion?

 

a.

H+(aq)

 

b.

There is no spectator ion.

 

c.

C2H3O2–(aq)

 

d.

Li+(aq)

 

e.

OH–(aq)

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQB1

 

57. What are the spectator ions in the reaction between aqueous hydroiodic acid and aqueous lithium hydroxide?

 

a.

Li+ only

 

b.

H+, I–, Li+, and OH–

 

c.

Li+ and I–

 

d.

H+ and OH–

 

e.

I– only

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.6 Acids and Bases

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQBT

 

58. What are the spectator ions in the reaction between aqueous nitric acid and ammonia?

 

a.

H+, NO3–, and NH4+

 

b.

H+ and NH4+

 

c.

NO3– only

 

d.

NO3– and NH4+

 

e.

H+ only

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CQBO

 

59. Hydrocyanic acid, HCN, is a weak acid. Write a net ionic equation for the reaction of aqueous hydrocyanic acid and aqueous sodium hydroxide.

 

a.

H+(aq) + OH–(aq) → H2O()

 

b.

HCN(aq) + NaOH(aq) → Na+(aq) + CN–(aq) + H2O()

 

c.

HCN(aq) + OH–(aq) → CN–(aq) + H2O()

 

d.

H+(aq) + NaOH(aq) → Na+(aq) + H2O()

 

e.

HCN(aq) + H2O(aq) → CN–(aq) + H3O+(aq)

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CQBZ

 

60. Which of the following compounds will produce a basic solution when dissolved in water?

 

a.

NaHSO4

b.

CO2

c.

CaO

d.

KCl

e.

SO2

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CQBS

 

61. Metal oxides react with water to produce ____.

 

a.

acids

 

b.

hydrogen gas

 

c.

oxygen gas

 

d.

hydronium ions

 

e.

bases

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CQBI

 

62. The net ionic equation for the reaction of calcium sulfite with nitric acid is

 

a.

Ca2+(aq) + CO32–(aq) + 2H+(aq) + 2NO3–(aq) → Ca(NO3)2(aq) + SO2(g) + H2O().

 

b.

CaSO3(s) + 2HNO2(aq) → Ca2+(aq) + 2NO2–(aq) + SO2(g) + H2O().

 

c.

CaSO3(s) + 2HNO3(aq) → Ca2+(aq) + 2NO3–(aq) + SO2(g) + H2O().

 

d.

CaSO3(s) + 2H+(aq) → Ca2+(aq) + SO2(g) + H2O().

 

e.

Ca(HSO3)2(s) + 2HNO3(aq) → Ca2+(aq) + 2NO3–(aq) + SO2(g) + 2H2O().

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.7 Gas-Forming Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQBW

 

63. Write a balanced net ionic equation for the reaction of aqueous solutions of baking soda (NaHCO3) and acetic acid.

 

a.

HCO3–(aq) + CH3CO2H(aq) → CH3CO2–(aq) + H2O() + CO2(g)

 

b.

HCO3–(aq) + H+(aq) → H2O() + CO2(g)

 

c.

HCO3–(aq) + H+(aq) → H2CO3(aq)

 

d.

2 NaHCO3(aq) + CH3CO2H(aq) → 2 Na2CO3(aq) + CH4(aq) + 2H2O() + CO2(g)

 

e.

NaHCO3(aq) + H+(aq) → H2CO3(s) + Na+(aq)

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.7 Gas-Forming Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CQKN

 

64. Write a balanced chemical equation for the reaction of aqueous solutions of ammonium sulfate and sodium hydroxide.

 

a.

(NH3)2SO4(aq) + 2 NaOH(aq) → 2 NH3(g) + Na2SO4(aq) + 2 OH−(aq)

 

b.

(NH4)2SO4(aq) + 2 NaOH(aq) → 2 NH3(g) + 2 H2O() + Na2SO4(aq)

 

c.

(NH4)2SO4(aq) + 2 NaOH(aq) → 2 NH4+(g) + Na2SO4(aq) + 2 OH−(aq)

 

d.

(NH3)2SO4(aq) + NaOH(aq) → 2 NH3(g) + NaOHSO4(aq)

 

e.

(NH4)2SO4(aq) + 2 NaOH(aq) → 2 NH4OH(aq) + SO3(g) + Na2O(aq)

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.7 Gas-Forming Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CQKB

 

65. In the following reaction, which species is oxidized?
3K2S(s) + 8H+(aq) + 2NO3–(aq)  →  6K+(aq) + 3S(s) + 2NO(g) + 4H2O

 

a.

H+

b.

NO

c.

K+

d.

NO3–

e.

K2S

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.8 Oxidation-Reduction Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQJ3

 

66. Which molecule in the reaction below is the oxidizing agent?
2 C2H6(g) + 7 O2(g) → 4 CO2(g) + 6 H2O(g)

 

a.

H2O

b.

C2H6

c.

CO2

d.

O2

e.

None

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.8 Oxidation-Reduction Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CQJA

 

67. Which species in the reaction below undergoes reduction?
H2O(g) + CO(g) → H2(g) + CO2(g)

 

a.

None

b.

H2O

c.

CO

d.

H2

e.

CO2

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.8 Oxidation-Reduction Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CQKG

 

68. Which species is reduced in the reaction below?
I–(aq) + ClO–(aq) → IO–(aq) + Cl–(aq)

 

a.

H2O

b.

Cl–

c.

IO–

d.

ClO–

e.

I–

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.8 Oxidation-Reduction Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CQKF

 

69. What is the oxidation number of Fe in BaFeO4?

 

a.

–2

b.

0

c.

2

d.

+3

e.

6

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.8 Oxidation-Reduction Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQKR

 

70. What is the oxidation number of N in NH4(H2PO4)?

 

a.

–2

b.

3

c.

1

d.

–3

e.

5

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.8 Oxidation-Reduction Reactions

NOTES:  

Dynamic Question

QUESTION ID:  

JFND-GO4R-EC3D-CQKD

 

71. The oxidation number of chlorine is highest in which of the following?

 

a.

NaClO3

b.

HClO2

c.

HCl

d.

ClO2−

e.

Cl2

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

True

TOPICS:  

3.8 Oxidation-Reduction Reactions

NOTES:  

Dynamic Question | OWL

QUESTION ID:  

JFND-GO4R-EC3D-CQJU

 

72. What is the oxidation number of each atom in sodium hydrogen carbonate, NaHCO3?

 

a.

Na = 0, H = 0, C = 0, O = 0

 

b.

Na = +1, H = +1, C = +4, O = –2

 

c.

Na = –1, H = +1, C = 0, O = –2

 

d.

Na = +1, H = –1, C = +2, O = –2

 

e.

Na = +1, H = –1, C = +6, O = –2

 

ANSWER:  

b

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.8 Oxidation-Reduction Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CQJ1

 

73. Which of the following elements generally acts as an oxidizing agent?

 

a.

C

b.

Li

c.

Br2

d.

H2

e.

Fe

 

ANSWER:  

c

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.8 Oxidation-Reduction Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CQJT

 

74. Which of the following chemical equations show oxidation-reduction reactions?

 

1.

Mg(s) + I2(aq) → MgI2(s)

 

2.

Pb(ClO4)2(aq) + 2 KI(aq) → PbI2(s) + 2 KClO4(aq)

 

3.

Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g)

 

 

a.

1 only

b.

2 only

c.

1 and 2

d.

1 and 3

e.

2 and 3

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.9 Classifying Reactions in Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-CQJO

 

75. Which of the following chemical equations is an acid-base reaction?

 

a.

Ba(OH)2(aq) + K2SO4(aq) → BaSO4(s) + 2 KOH(aq)

 

b.

3 NaOH(aq) + AlCl3(aq) → Al(OH)3(s) + 3 NaCl(aq)

 

c.

2 HCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 HNO3(aq)

 

d.

H3PO4(aq) + NH3(aq) → NH4+(aq) + H2PO4−(aq)

 

e.

2 H+(aq) + Zn(s) → H2(g) + Zn2+(aq)

 

ANSWER:  

d

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.9 Classifying Reactions in Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-CQJZ

 

76. All of the following are oxidation-reduction reactions EXCEPT

 

a.

CaCO3(s) → CaO(s) + CO2(g)

 

b.

2 C(s) + O2(g) → 2 CO(g)

 

c.

2 Na(s) + Br2(g) → 2 NaBr(g)

 

d.

Fe(s) + 2 HCl(aq) → FeCl2(aq) + H2(g)

 

e.

2 H2O() → 2 H2(g) + O2(g)

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multiple Choice

HAS VARIABLES:  

False

TOPICS:  

3.9 Classifying Reactions in Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-CQJS

 

77. Which of the following are classified as precipitation reactions?

 

1.

AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq)

 

2.

2Mg(s) + O2(g) → 2MgO(s)

 

3.

Zn(s) + 2Ag+(aq) → 2Ag(s) + Zn2+(aq)

 

 

a.

1 only

b.

2 only

c.

3 only

d.

2 and 3

e.

1, 2, and 3

 

ANSWER:  

a

POINTS:  

1

QUESTION TYPE:  

Multi-Mode (Multiple choice)

HAS VARIABLES:  

False

TOPICS:  

3.9 Classifying Reactions in Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-CQJI

 

78. Which of the following is/are classified as an acid-base reaction?

 

1.

AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq)

 

2.

2Mg(s) + O2(g) → 2MgO(s)

 

3.

Zn(s) + 2Ag+(aq) → 2Ag(s) + Zn2+(aq)

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1, 2, and 3

e.

none

 

ANSWER:  

e

POINTS:  

1

QUESTION TYPE:  

Multi-Mode (Multiple choice)

HAS VARIABLES:  

False

TOPICS:  

3.9 Classifying Reactions in Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-CQJW

 

79. A(n) ________ agent gains electrons in an oxidation-reduction reaction.

ANSWER:  

oxidizing

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.8 Oxidation-Reduction Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CTKN

 

80. ________ acid is produced in a larger quantity than any other chemical in the United States. This chemical is used in the production of fertilizers, pigments, alcohol, paper and detergents.

ANSWER:  

Sulfuric

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CTKB

 

81. The net ionic equation for the reaction of barium chloride and sodium sulfate is shown below.
Ba2+(aq) + SO42–(aq) → BaSO4(s)
Chloride and sodium ions are referred to as ________ ions because they are not involved in the reaction.

ANSWER:  

spectator

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions

QUESTION ID:  

JFND-GO4R-EC3D-CTJ3

 

82. A solution is a homogeneous mixture composed of one or more ____________ dissolved in a solvent.

ANSWER:  

solutes

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.4 Aqueous Solution

QUESTION ID:  

JFND-GO4R-EC3D-CTJA

 

83. Give the name of an acidic oxide and write a balanced chemical equation for the reaction of the oxide with water.

ANSWER:  

Sulfur dioxide. SO2(g) + H2O() → H2SO3(aq). Other examples include carbon dioxide forming carbonic acid, sulfur trioxide forming sulfuric acid, and nitrogen dioxide forming a mixture of nitrous acid and nitric acid.

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CTKG

 

84. If an aqueous sodium hydroxide solution is left in contact with air, the concentration of hydroxide ion gradually decreases. The process can be hastened if a person exhales over a sodium hydroxide solution. Write a balanced chemical equation that describes the process by which the hydroxide ion concentration decreases.

ANSWER:  

OH–(aq) + CO2(aq) → HCO3–(aq)

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CTKF

 

85. _____-oxides produce acids when reacted with water.

ANSWER:  

Nonmetal

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CTKR

 

86. Ionic and molecular compounds that form ions in aqueous solution are called _____.

ANSWER:  

electrolytes

POINTS:  

1

QUESTION TYPE:  

Subjective Short Answer

HAS VARIABLES:  

False

TOPICS:  

3.5 Precipitation Reactions
3.6 Acids and Bases

QUESTION ID:  

JFND-GO4R-EC3D-CTKD

 

 

Chapter_05_Principles_of_Chemical_Reactivity_Energy_and_Chemical_Reactions

 

 

1. The energy associated with a stretched spring is called _____.

 

a.

heat

 

b.

internal energy

 

c.

temperature

 

d.

kinetic energy

 

e.

potential energy

 

ANSWER:  

e

POINTS:  

1

HAS VARIABLES:  

True

TOPICS:  

5.1 Energy: Some Basic Principles

NOTES:  

Dynamic Question

 

2. Which of the following statements is/are CORRECT?

 

1.

A system is defined as an object or collection of objects being studied.

 

2.

Surroundings are defined as the entire universe, including the system.

 

3.

In an endothermic reaction, heat is transferred from the system to the surroundings.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 3

e.

1, 2, and 3

 

ANSWER:  

a

POINTS:  

1

HAS VARIABLES:  

False

TOPICS:  

5.1 Energy: Some Basic Principles

 

3. A hot piece of iron is dropped into a beaker containing colder water. Which of the following statements is/are CORRECT?

 

1.

Energy is transferred as heat from the iron to the water.

 

2.

Thermal equilibrium is attained when the iron and the water reach the same temperature.

 

3.

Thermal energy from the iron is converted to electrostatic energy in the water.

 

 

a.

1 only

b.

2 only

c.

3 only

d.

1 and 2

e.

1, 2, and 3

 

ANSWER:  

d

POINTS:  

1

HAS VARIABLES:  

False

TOPICS:  

5.1 Energy: Some Basic Principles

 

4. Which one of the following statements is INCORRECT?

 

a.

Energy is neither created nor destroyed in chemical reactions.

 

b.

Kinetic energy is the energy that results from an object’s position.

 

c.

Exothermic processes transfer heat from the system into the surroundings.

 

d.

Increasing the thermal energy of a gas increases the motion of its atoms.

 

e.

Energy is the capacity to do work.

 

ANSWER:  

b

POINTS:  

1

HAS VARIABLES:  

False

TOPICS:  

5.1 Energy: Some Basic Principles

 

5. Many homes are heated using natural gas. The combustion of natural gas converts

 

a.

chemical potential energy to thermal energy.

 

b.

thermal energy to mechanical energy.

 

c.

mechanical energy to chemical potential.

 

d.

electrostatic energy to mechanical energy.

 

e.

gravitational energy to acoustic energy.

 

ANSWER:  

a

POINTS:  

1

HAS VARIABLES:  

False

TOPICS:  

5.1 Energy: Some Basic Principles

 

6. Which of these physical changes would require the addition of energy?

 

a.

melting a solid

 

b.

condensing a gas

 

c.

freezing a liquid

 

d.

all of these

 

e.

none of these

 

ANSWER:  

a

POINTS:  

1

HAS VARIABLES:  

True

TOPICS:  

5.1 Energy: Some Basic Principles

NOTES:  

Dynamic Question

 

7. Which of the following processes is/are endothermic?

 

1.

the combustion of hydrogen

 

2.

the condensation of water

 

3.

the evaporation of isopropyl alcohol

 

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