Final Exam Chem 1100 Ss10

FINAL EXAM CHEM 1100 SS10
Version #2

Student: ______

1.The energy stored in the chemical bonds of fossil fuels is a form of ______energy.
A.electrical
B.mechanical
C.potential
D.kinetic

2.Which color in the rainbow has the shortest wavelength?
A.orange
B.red
C.yellow
D.blue

3.On a Periodic Table, the columns of elements with similar properties are
A.periods.
B.groups.
C.rows.
D.metals.

4.A chemical reaction accompanied by a release of energy is called a/an ______reaction.
A.endothermic
B.catalyzed
C.exothermic
D.fast

5.The half-life of carbon-14 is 5,730 years. If you started with 100.0 g of carbon-14, how much would remain after 4 half-lives?
A.25.0 g
B.12.5 g
C.6.25 g
D.57.3 g

6.Which naturally occurring radioactive particles are negatively charged?
A.alpha particles
B.beta particles
C.gamma radiation
D.neutrons

7.Which formula below represents a trans fatty acid?
A.
B.
C.
D.

8.Which is the correct formula (including charge) of a nitrate ion?
A.NO2+
B.NO2¯
C.NO3¯
D.NO3+

9.The correct name for CuO is
A.copper oxide.
B.monocopper oxide.
C.copper(I) oxide.
D.copper(II) oxide.

10.The speed of light in air
A.depends only on the frequency of the light.
B.depends only on the wavelength of light.
C.is independent of the wavelength and frequency of light.
D.depends on both the wavelength and the frequency of light.

11.O2 and O3 molecules are
A.allotropes.
B.structural isomers.
C.isotopes.
D.geometrical isomers.

12.The drawing shows two water molecules. Which statement is correct?

A.A: covalent bond; B: hydrogen bond; B is stronger
B.A: hydrogen bond; B: covalent bond; A is stronger
C.A: covalent bond; B: hydrogen bond; A is stronger
D.A: hydrogen bond; B: covalent bond; B is stronger

13.Which is not true of radioactive half-life? Radioactive half-life is
A.the time required for the level of radioactivity in a sample to be cut in half.
B.independent of the amount of radioactive material present.
C.increased by heating the isotope.
D.independent of the physical or chemical form of the isotope.

14.The most numerous of the elements are the
A.metals.
B.non metals.
C.metalloids.
D.noble gases.

15.Which of these represents an amino acid?
A.
B.
C.
D.

16.How are HDPE and LDPE different?
A.Only one is a member of the "Big Six."
B.They are made from different monomers.
C.One has branched chains while one is linear.
D.One is made by addition polymerization, one by condensation.

17.The correct Lewis dot structure for HCl is:
A.
B.
C.
D.

18.Which is a fossil fuel?
A.wood
B.uranium
C.ethanol
D.natural gas

19.The heat of combustion of methane, CH4, is 50.1 kJ/g. How much heat would be generated if 1.00 mol of methane undergoes complete combustion?
A.0.32 kJ
B.3.12 kJ
C.601 kJ
D.804 kJ

20.This is the structure of propylene.

Which of these represents the "head-to-tail, head-to-tail" arrangement of monomers in polypropylene?
A.
B.
C.
D.

21.A polymer that is made from two different monomers is known as a
A.dimer.
B.dipolymer.
C.copolymer.
D.multimer.

22.What is the molarity of sodium chloride in a solution containing 0.50 mol of sodium chloride in 500 mL of water?
A.0.25 M
B.0.50 M
C.1.0 M
D.5.0 M

23.Based on this pie chart, what percentage of the USA's total energy needs come from fossil fuels?

A.40%
B.61%
C.63%
D.84%

24.What is the primary component of an exhaled breath?
A.N2
B.O2
C.CO2
D.H2O

25.Which squares contain mixtures?

A.II and III only
B.III and IV only
C.I, III, and IV only
D.I and IV only

26.Which corresponds to the composition of the ion typically formed by magnesium?

A.A
B.B
C.C
D.D

27.Combustion is a chemical process in which a fuel combines with______to release energy and form products.
A.nitrogen
B.oxygen
C.methane
D.hydrogen

28.The body's chemical messengers, called _____, are produced in the endocrine glands.
A.enzymes
B.hormones
C.isomers
D.viruses

29.Which correctly describes groundwater?
A.any water found above ground in lakes and rivers; usually needs treatment to remove harmful contaminants
B.any water found above ground in lakes and rivers; usually free of harmful contaminants
C.any water taken from aquifers; usually needs treatment to remove harmful contaminants
D.any water taken from aquifers; usually free from harmful contaminants

30.The energy of motion is called ______energy.
A.electrical
B.mechanical
C.potential
D.kinetic

31.In the famous equation E = mc2, the symbols represent:
A.E = Einstein, m = matter, c = speed of light
B.E = energy, m = mass, c = characteristic of the particle
C.E = Einstein, m = meters, c = conversion
D.E = energy, m = mass, c = speed of light

32.The distinctive arrangements of atoms that impart characteristic chemical properties to the molecules that contain them are called
A.monomers.
B.functional groups.
C.radicals.
D.transition states.

33.What do the letters HDPE represent?
A.high definition polyethylene
B.high density polyethylene
C.hard durable polyethylene
D.highly ductile polyethylene

34.Which compound should be the most soluble in water?
A.
B.
C.
D.

35.Which contributes to the ozone hole?
A.automobile exhaust
B.chlorofluorocarbons (CFCs)
C.loss of Northern forests
D.All of these choices are correct.

36.What is the structure of the ester that is formed in the following reaction?

A.
B.
C.
D.

37.Octane (C8H18) is one of the principal components of gasoline. How many moles of CO2 are produced during the combustion of 3.0 mol of octane?
Unbalanced equation: C8H18 + O2 CO2 + H2O
A.3.0
B.8.0
C.24
D.26

38.What is the correct name for (NH4)2CO3?
A.biammonium carbonate
B.ammonium bicarbonate
C.ammonium carboxide
D.ammonium carbonate

39.Isotopes of an element have the same number of ______, but different numbers of ______.
A.electrons; protons
B.protons; neutrons
C.neutrons; protons
D.protons; electrons

40.A polymer is a large molecule
A.made up of long chains of atoms held together by hydrogen bonds.
B.made up of long chains of atoms covalently bonded together.
C.made up of a large lattice structure held together by ionic bonds.
D.always made up of identical monomer units.

41.Of five major gaseous components of air, which is the only one to vary significantly in concentration from place to place and from day to day?
A.water vapor
B.carbon dioxide
C.nitrogen
D.argon

42.Which is true about radioactivity? Radioactivity
A.is used to treat certain cancers.
B.damages white blood cells.
C.deforms DNA.
D.All of these choices are true.

43.What percentage of Earth's water is in the oceans?
A.97.4%
B.50%
C.2.59%
D.0.014%

44.Any chemical or physical change that absorbs energy
A.has high activation energy.
B.is an endothermic process.
C.is an exothermic process.
D.is a catalyzed process.

45.How many protons, neutrons, and electrons are there in a neutral atom of ?

A.A
B.B
C.C
D.D

46. Determine the molar mass for fluoxetine (C16H16F3NO), also known as Prozac®.
A. 279.3 g/mol
B. 281.3 g/mol
C. 295.3 g/mol
D. 297.1 g/mol

47.The degree of randomness in position or energy is called the
A.entropy.
B.activation energy.
C.heat of combustion.
D.potential energy.

48.Polyvinyl chloride (PVC) is used in
A.water bottles.
B.CD cases.
C.milk cartons.
D.plumbing pipe.

49.Air is a(n)
A.element.
B.compound.
C.mixture.
D.pure substance.

50.Which of these represents the best Lewis structure for acetylene (C2H2)?

A.A
B.B
C.C
D.D

FINAL EXAM CHEM 1100 SS10 Key
Version #2

1.The energy stored in the chemical bonds of fossil fuels is a form of ______energy.
A.electrical
B.mechanical
C.potential
D.kinetic

American - 004 Chapter... #8

2.Which color in the rainbow has the shortest wavelength?
A.orange
B.red
C.yellow
D.blue

American - 002 Chapter... #3

3.On a Periodic Table, the columns of elements with similar properties are
A.periods.
B.groups.
C.rows.
D.metals.

American - 001 Chapter... #30

4.A chemical reaction accompanied by a release of energy is called a/an ______reaction.
A.endothermic
B.catalyzed
C.exothermic
D.fast

American - 004 Chapter... #14

5.The half-life of carbon-14 is 5,730 years. If you started with 100.0 g of carbon-14, how much would remain after 4 half-lives?
A.25.0 g
B.12.5 g
C.6.25 g
D.57.3 g

American - 007 Chapter... #1

6.Which naturally occurring radioactive particles are negatively charged?
A.alpha particles
B.beta particles
C.gamma radiation
D.neutrons

American - 007 Chapter... #4

7.Which formula below represents a trans fatty acid?
A.
B.
C.
D.

American - 011 Chapter... #25

8.Which is the correct formula (including charge) of a nitrate ion?
A.NO2+
B.NO2¯
C.NO3¯
D.NO3+

American - 005 Chapter... #36

9.The correct name for CuO is
A.copper oxide.
B.monocopper oxide.
C.copper(I) oxide.
D.copper(II) oxide.

American - 005 Chapter... #39

American - 002 Chapter... #10

11.O2 and O3 molecules are
A.allotropes.
B.structural isomers.
C.isotopes.
D.geometrical isomers.

American - 002 Chapter... #1

American - 005 Chapter... #21

American - 007 Chapter... #24

14.The most numerous of the elements are the
A.metals.
B.non metals.
C.metalloids.
D.noble gases.

American - 001 Chapter... #32

15.Which of these represents an amino acid?
A.
B.
C.
D.

American - 009 Chapter... #28

American - 009 Chapter... #42

17.The correct Lewis dot structure for HCl is:
A.
B.
C.
D.

American - 002 Chapter... #17

18.Which is a fossil fuel?
A.wood
B.uranium
C.ethanol
D.natural gas

American - 004 Chapter... #32

19.The heat of combustion of methane, CH4, is 50.1 kJ/g. How much heat would be generated if 1.00 mol of methane undergoes complete combustion?
A.0.32 kJ
B.3.12 kJ
C.601 kJ
D.804 kJ

American - 004 Chapter... #4

20.This is the structure of propylene.

Which of these represents the "head-to-tail, head-to-tail" arrangement of monomers in polypropylene?
A.
B.
C.
D.

American - 009 Chapter... #18

21.A polymer that is made from two different monomers is known as a
A.dimer.
B.dipolymer.
C.copolymer.
D.multimer.

American - 009 Chapter... #31

22.What is the molarity of sodium chloride in a solution containing 0.50 mol of sodium chloride in 500 mL of water?
A.0.25 M
B.0.50 M
C.1.0 M
D.5.0 M

American - 005 Chapter... #9

23.Based on this pie chart, what percentage of the USA's total energy needs come from fossil fuels?

A.40%
B.61%
C.63%
D.84%

American - 004 Chapter... #1

24.What is the primary component of an exhaled breath?
A.N2
B.O2
C.CO2
D.H2O

American - 001 Chapter... #5

25.Which squares contain mixtures?

A.II and III only
B.III and IV only
C.I, III, and IV only
D.I and IV only

American - 001 Chapter... #36

26.Which corresponds to the composition of the ion typically formed by magnesium?

A.A
B.B
C.C
D.D

American - 005 Chapter... #32

27.Combustion is a chemical process in which a fuel combines with______to release energy and form products.
A.nitrogen
B.oxygen
C.methane
D.hydrogen

American - 004 Chapter... #24

28.The body's chemical messengers, called _____, are produced in the endocrine glands.
A.enzymes
B.hormones
C.isomers
D.viruses

American - 010 Chapter... #26

American - 005 Chapter... #4

30.The energy of motion is called ______energy.
A.electrical
B.mechanical
C.potential
D.kinetic

American - 004 Chapter... #9

American - 007 Chapter... #11

32.The distinctive arrangements of atoms that impart characteristic chemical properties to the molecules that contain them are called
A.monomers.
B.functional groups.
C.radicals.
D.transition states.

American - 009 Chapter... #21

33.What do the letters HDPE represent?
A.high definition polyethylene
B.high density polyethylene
C.hard durable polyethylene
D.highly ductile polyethylene

American - 009 Chapter... #40

34.Which compound should be the most soluble in water?
A.
B.
C.
D.

American - 005 Chapter... #44

35.Which contributes to the ozone hole?
A.automobile exhaust
B.chlorofluorocarbons (CFCs)
C.loss of Northern forests
D.All of these choices are correct.

American - 002 Chapter... #13

36.What is the structure of the ester that is formed in the following reaction?

A.
B.
C.
D.

American - 010 Chapter... #19

American - 003 Chapter... #24

38.What is the correct name for (NH4)2CO3?
A.biammonium carbonate
B.ammonium bicarbonate
C.ammonium carboxide
D.ammonium carbonate

American - 005 Chapter... #38

39.Isotopes of an element have the same number of ______, but different numbers of ______.
A.electrons; protons
B.protons; neutrons
C.neutrons; protons
D.protons; electrons

American - 002 Chapter... #27

American - 009 Chapter... #1

41.Of five major gaseous components of air, which is the only one to vary significantly in concentration from place to place and from day to day?
A.water vapor
B.carbon dioxide
C.nitrogen
D.argon

American - 001 Chapter... #3

42.Which is true about radioactivity? Radioactivity
A.is used to treat certain cancers.
B.damages white blood cells.
C.deforms DNA.
D.All of these choices are true.

American - 007 Chapter... #22

43.What percentage of Earth's water is in the oceans?
A.97.4%
B.50%
C.2.59%
D.0.014%

American - 005 Chapter... #1

44.Any chemical or physical change that absorbs energy
A.has high activation energy.
B.is an endothermic process.
C.is an exothermic process.
D.is a catalyzed process.

American - 004 Chapter... #16

45.How many protons, neutrons, and electrons are there in a neutral atom of ?

A.A
B.B
C.C
D.D

American - 002 Chapter... #2

46. Determine the molar mass for fluoxetine (C16H16F3NO), also known as Prozac®.
A. 279.3 g/mol
B. 281.3 g/mol
C. 295.3 g/mol
D. 297.1 g/mol

American - 003 Chapter... #11

47.The degree of randomness in position or energy is called the
A.entropy.
B.activation energy.
C.heat of combustion.
D.potential energy.

American - 004 Chapter... #20

48.Polyvinyl chloride (PVC) is used in
A.water bottles.
B.CD cases.
C.milk cartons.
D.plumbing pipe.

American - 009 Chapter... #10

49.Air is a(n)
A.element.
B.compound.
C.mixture.
D.pure substance.

American - 001 Chapter... #9

50.Which of these represents the best Lewis structure for acetylene (C2H2)?

A.A
B.B
C.C
D.D

American - 003 Chapter... #4