Chemistry and Society
Mock Exam
Course Introduction
This course explores the fundamental concepts of chemistry and their profound impact on modern society. Students will examine how chemical principles contribute to advances in healthcare, energy production, environmental sustainability, food safety, and materials science. The course emphasizes the responsible use of chemical knowledge, discussing societal issues such as pollution, climate change, and ethical considerations in chemical research and industry. Through case studies, interactive discussions, and real-world examples, students will develop an understanding of chemistrys role in shaping technology, policy, and everyday life.
Recommended Textbook Chemistry in Context 7th Edition by American Chemical Society
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12 Chapters
848 Verified Questions
848 Flashcards
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Page 2
Chapter 1: The Air We Breathe
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76 Verified Questions
76 Flashcards
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Sample Questions
Q1) The most numerous of the elements are the A)metals.
B)non metals.
C)metalloids.
D)noble gases.
Answer: A
Q2) Choose the proper coefficients for each substance to balance this equation. ____ C<sub>2</sub>H<sub>4</sub>(g)+ ____ O<sub>2</sub>(g) ____ CO<sub>2</sub>(g)+ ____ H<sub>2</sub>O(g)
A)1,1,2,2
B)1,3,2,2
C)2,3,4,2
D)2,2,4,2
Answer: B
Q3) Which is not a pure substance?
A)helium
B)copper wire
C)air
D)sucrose
Answer: C
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Chapter 2: Protecting the Ozone Layer
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75 Verified Questions
75 Flashcards
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Sample Questions
Q1) Yellow light has a wavelength of 580 nm.What is the frequency of this light?
A)2.39 × 10¯<sup>19</sup> s¯<sup>1</sup>
B)1.80 × 10¯<sup>7</sup> s¯<sup>1</sup>
C)5.17 × 10<sup>5</sup> s¯<sup>1</sup>
D)5.17 × 10<sup>14</sup> s¯<sup>1</sup>
Answer: D
Q2) In what year will all production and importation of HCFCs end in the United States?
A)2012
B)2020
C)2030
D)2015
Answer: D
Q3) Which statement is correct?
A)UV-A is the most energetic of the three forms of UV light.
B)UV-B is the most energetic of the three forms of UV light.
C)UV-C is the most energetic of the three forms of UV light.
D)UV-A,UV-B,and UV-C are equally energetic.
Answer: C
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Chapter 3: The Chemistry of Global Climate Change
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73 Flashcards
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Sample Questions
Q1) CO<sub>2</sub> emissions in China declined by 9% over the five-year period ending in 2000.If 5.00 × 10<sup>8</sup> metric tons (t)of CO<sub>2</sub> was emitted in 1995,how much CO<sub>2</sub> was released in 2000?
A)4.55 × 10<sup>9</sup> t
B)4.55 × 10<sup>8</sup> t
C)4.50 × 10<sup>8</sup> t
D)4.55 × 10<sup>7</sup> t
Answer: B
Q2) Although coal is a complex mixture of substances,its elemental composition can be approximated by the formula C<sub>135</sub>H<sub>96</sub>O<sub>9</sub>NS.Using this formula,predict the amount of CO<sub>2</sub> released from the combustion of 1.00 × 10<sup>6</sup> metric tons of coal (about the annual average for a coal-fired power plant).1 metric ton = 1 × 10<sup>3</sup> kg
A)3.66 × 10<sup>9</sup> kg
B)3.11 × 10<sup>9</sup> kg
C)8.50 × 10<sup>8</sup> kg
D)3.11 × 10<sup>5</sup> kg
Answer: B
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Chapter 4: Energy From Combustion
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Sample Questions
Q1) During petroleum refining,catalysts play an extremely important role during the A)cracking and reforming processes.
B)environmental cleanup of oil wells.
C)extraction of the oil from the earth.
D)physical separation of the various components of the petroleum.
Q2) Which of these statements about biodiesel is not true?
A)Biodiesel is made from renewable resources such as vegetable oils and animal fats.
B)Biodiesel is non-toxic and biodegradable.
C)Biodiesel can be used in diesel engines without major modifications.
D)Biodiesel has been withdrawn from several states due to health concerns.
Q3) Soft lignite (brown coal)is the lowest grade of coal.Since it has undergone the least change since burial,its chemical composition-and hence its heat of combustion-is most similar to that of A)natural gas.
B)petroleum.
C)water.
D)wooD.
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Chapter 5: Water for Life
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74 Verified Questions
74 Flashcards
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Sample Questions
Q1) In general,hydrogen bonds are
A)about ten times stronger than typical covalent bonds.
B)about 1/10 as strong as typical covalent bonds.
C)found in every molecule containing more than one hydrogen atom.
D)found only between H atoms in molecules like H<sub>2</sub>.
Q2) What percentage of Earth's water is in the oceans?
A)97.4%
B)50%
C)2.59%
D)0.014%
Q3) In general,hydrogen bonds are ____ and _____ typical covalent bonds.
A)longer than;about one tenth as strong as B)shorter than;about one tenth as strong as C)longer than;about ten times as strong as D)shorter than;about ten times as strong as
Q4) Which of these is not a trihalomethane?
A)CHCl<sub>3</sub>
B)CH<sub>3</sub>Cl
C)CHF<sub>3</sub>
D)CHBr<sub>2</sub>Cl
Page 7
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Chapter 6: Neutralizing the Threat of Acid Rain
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Sample Questions
Q1) Which solution is acidic?
A)M<sub>OH¯</sub> = 0.0065 M
B)M<sub>H+</sub> = 1.27 × 10¯<sup>9</sup> M
C)M<sub>H+</sub> = 5.79 × 10¯<sup>10</sup> M
D)M<sub>OH¯</sub> = 1.77 × 10¯<sup>10</sup> M
Q2) Which reaction most accurately represents the dissociation of nitrous acid (HNO<sub>2</sub>)in water?
A)HNO<sub>2</sub> + H<sub>2</sub>O H<sub>3</sub>O<sup>+</sup> + NO<sub>2</sub>¯
B)HNO<sub>2</sub> + H<sub>2</sub>O H<sub>3</sub>O<sub>2</sub><sup>+</sup> + NO¯
C)HNO<sub>2</sub> + H<sub>2</sub>O HN + HO<sup>+</sup> + HO<sub>2</sub>¯
D)HNO<sub>2</sub> + H<sub>2</sub>O H<sub>3</sub>O<sup>+</sup> + N + O<sub>2</sub>¯
Q3) The acidity of rain was first studied in A)the mid-1750s. B)the mid-1850s. C)1900.
D)the mid-1950s.
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Page 8
Chapter 7: The Fires of Nuclear Fission
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Sample Questions
Q1) Which naturally occurring type of radiation has the greatest penetrating power?
A)alpha
B)beta
C)gamma
D)neutron
Q2) In the famous equation E = mc<sup>2</sup>,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
Q3) Which radiation source is the biggest contributor to the average annual dose?
A)home building materials
B)food,air,and water
C)a nuclear power plant within 50 miles
D)fallout from nuclear weapons testing
Q4) Weapons-grade uranium is
A)30% U-235
B)60% U-235
C)90% U-235
D)90% U-239
Page 9
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Chapter 8: Energy From Electron Transfer
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70 Verified Questions
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Sample Questions
Q1) Very small mercury batteries have been made and used in a multitude of applications.Why have they been replaced by other kinds of batteries for most applications?
A)Mercury has become far too expensive to use in batteries.
B)Mercury is poisonous and difficult to dispose of.
C)These batteries cannot generate enough current for any modern devices.
D)Though they may be made very small,they are far too heavy to use in most applications.
Q2) Batteries must be used in addition to solar cells when generating household electricity because
A)solar cells can generate electricity only via the output of a battery.
B)solar cells can generate only a small fraction of the total energy needed by a household at any one time.
C)solar cells generate so much electricity that they will overheat if they cannot transfer the excess electricity somewhere to dissipate the extra heat.
D)batteries must supply the energy when sunlight is not available.
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Chapter 9: The World of Polymers and Plastics
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84 Verified Questions
84 Flashcards
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Sample Questions
Q1) Which of these polymers is made by the process of condensation polymerization?
A)polyethylene
B)polystyrene
C)polyvinyl chloride
D)polyethylene terephthalate
Q2) Which would be classified as a "natural" polymer?
A)cellulose
B)polystyrene
C)polyester
D)nylon
Q3) Proteins are polymers of amino acids held together by ______ bonds.
A)protein
B)peptide
C)ester
D)acid
Q4) Polyvinyl chloride (PVC)is used in
A)water bottles.
B)CD cases.
C)milk cartons.
D)plumbing pipe.
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Chapter 10: Manipulating Molecules and Designing Drugs
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Sample Questions
Q1) Which of the following is true of the green by design process Codexis used to create HN?
I.There is less waste.
II.Harsh reagents are avoided.
III.It uses recombinant technology.
IV.It needs intense purification.
A)I and IV only
B)II and III only
C)III and IV only
D)I,II,and III only
Q2) Which phrase best describes the function of the steroid testosterone?
A)regulates secondary sexual characteristics
B)controls the female reproductive cycle
C)regulates metabolism
D)regulates digestion of fat
Q3) What is meant by a "citizen petition"?
A)It alerts the FDA to a safety issue surrounding a drug.
B)It asks the FDA to make a prescription drug available over-the-counter.
C)It asks the FDA to force a drug company to make a generic drug.
D)It demands the FDA to "fast-track" a drug's approval.
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Chapter 11: Nutrition: Food for Thought
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Sample Questions
Q1) All nine essential amino acids can be found in meat.By employing the nutritional principle of complementarity,a vegetarian gets all nine.What is complementarity?
A)combining foods that complement each other's essential amino acids
B)taking essential amino acid supplements to complement the diet
C)complementing a vegetable with a fruit at every meal
D)having milk to complement every meal
Q2) Which statements about dietary fat intake are true?
I.Eating trans fat increases the risk of heart disease substantially.
II.Eating saturated fat increases the risk of heart disease slightly.
III.Eating unsaturated fats decreases the risk of heart disease.
A)I and II only
B)II and III only
C)I and III only
D)I,II,and III
Q3) Which butter substitute has the highest percentage of polyunsaturated fats?
A)Benecol
B)Brummel & Brown
C)I Can't Believe It's Not Butter
D)All of the choices are the same.
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Page 13
Chapter 12: Genetic Engineering and the Molecules of Life
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59 Verified Questions
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Sample Questions
Q1) If the adenine (A)content of DNA is 33%,what is its guanine (G)content?
A)33%
B)17%
C)50%
D)22%
Q2) Transcription is the process by which A)copies of DNA are made.
B)RNA is copied from DNA.
C)an RNA template is used to assemble amino acids into a protein.
D)substrates are converted into products.
Q3) The backbone structure of DNA is
A)sugar-base-sugar-base.
B)base-phosphate-base-phosphate.
C)base-base-base-base.
D)sugar-phosphate-sugar-phosphate.
Q4) If the thymine (T)content of DNA is 29%,what is the content of guanine (G)?
A)21%
B)29%
C)58%
D)71%
Page 14
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