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Introductory Chemistry, 4e (Tro)   True/False Questions 1) Cars are being developed that run on hydrogen gas and the only emission is water. 2) Fuel cells are based on the tendency of some elements to gain electrons from gasoline. 3) Reactions involving the transfer of electrons are called redox reactions. 4) Oxidation can be defined as.
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51) Name the following compound: CH3?CH2?CH2?CH2?O? CH2?CH3 A) butyl ethyl ether B) hexyl ether C) ethyl butylone D) 2-hexone 52) Name the following compound: A) propanone B) 2-methyl-2-ethanone C) propanal D) isopropanol E) none of the above 53) A compound named "propanal" would be classified as an A) alcohol. B) amine. C) aldehyde. D) ether. E) none of the above 54) Name the following compound: A).
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Multiple Choice Questions 1) Radioactive elements are used for: A) medical diagnosis. B) medical treatment. C) determining age of fossils and rocks. D) generating electricity. E) all of the above 2) Who discovered radioactivity? A) Antoine Becquerel B) Pierre Curie C) Marie Curie D) Ernest Rutherford E) Benjamin Franklin 3) How was radioactivity discovered? A) Rutherford was investigating the structure of Au atoms and.
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Multiple Choice Questions 1) The human genome project showed that humans have approximately ________ genes. A) 46 B) 20,000 C) 36,000 D) 3 Million E) none of the above 2) A roundworm has approximately ________ genes. A) 46 B) 20,000 C) 32,000 D) 3 Million E) none of the above 3) The human genome project is expected to: A) help identify people who are.
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11) An example of a disaccharide is A) glucose B) sucrose C) cellulose D) glycogen E) both C and D 12) Which of the following is NOT true regarding disaccharides? A) The disaccharide link is so strong that it cannot be broken during digestion. B) The link between the monosaccharides is called a glycosidic linkage. C) Water is eliminated.
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) All organic molecules contain carbon but not all carbon compounds are organic compounds. 2) The study of carbon-containing compounds and their reactions is called carbonyl chemistry. 3) It was originally thought that organic compounds had to come from living things. 4) Organic compounds have to come from living.
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Multiple Choice Questions 1) What chemical reaction was used by the German chemist Friedrich Wohler to synthesize urea for the first time? A) evaporating urine B) heating ammonium cyanate C) heating ammonium cyanide D) combining the elements carbon, hydrogen, oxygen, and nitrogen E) none of the above 2) Which of the following statements about carbon is FALSE? A).
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21) Enzymes that act as catalysts are called proteins. 22) Proteins are polymers of amino acids. 23) Amino acids are molecules that contain a side chain, a main chain, an amine group, a carboxylic acid group and a protein group. 24) Protein structures are expressed in terms of amino acid sequence, the.
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11) Consider the following n-alkanes: CH4, C2H6, C3H8, C4H10 Which of these would you expect to have the highest boiling point? A) CH4 B) C2H6 C) C3H8 D) C4H10 E) all n-alkanes have the same boiling point 12) Which of the following is the formula for heptane? A) C4H10 B) C3H8 C) C7H16 D) C2H6 E) all of the above 13) Which formula.
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51) Why can U-235 produce a chain reaction? A) Extremely high amounts of energy are released in the reaction. B) Neutrons produce the fission reaction and are also a product of the reaction. C) All elements above bismuth (#83) can undergo fission based chain reactions. D) Chain reactions merely need sufficient mass (critical mass).
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31) The compound named 2,3-dimethylpentane would have how many total number of carbons? A) 3 B) 5 C) 7 D) 8 E) none of the above 32) What are the products from the combustion of 2-methyl-3-ethyloctane? A) variety of small hydrocarbons B) carbon monoxide, carbon trioxide and water C) carbon dioxide and water D) carbon monoxide and water E) none of.
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) The human genome project was embarked upon in the late 1970s with the goal of mapping the entire DNA molecule. 2) Biochemistry is the study of chemical substances and process that occur in plants, animals and microorganisms. 3) The four main classes of biochemical compounds are carbohydrates,.
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21) When an alkene undergoes an addition reaction to form an alkane, a saturated compound has been converted to an unsaturated compound. 22) Aromatic compounds contain a benzene ring. 23) R? OH is an ether functional group. 24) R?O?R is an ether functional group. 25) CH3CH2CH2CH2CH2OH is named 5-pentanol. 26) The formula for ethyl propyl.
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31) The hydrogen isotope known as tritium contains three neutrons. 32) The energy of the sun comes from fusion reactions. 33) The combination of two light nuclei to form a heavier one is known as nuclear fission. 34) A fusion reaction emits large amounts of energy while a fission reaction absorbs large amounts.
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Algorithmic Questions 1) Calculate the equilibrium constant for the reaction below given that [Cl2] = 0.11 M, [H2] = 0.15 M, and [HCl] = 0.95 M at equilibrium. Given: Cl2 (g) + H2 (g) → 2HCl(g) A) 0.017 B) 0.018 C) 58 D) 55 E) none of the above 2) Calculate the concentration of NO2 in an.
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31) Which protein structure provides the amino acid sequence? A) Primary Structure B) Secondary Structure C) Tertiary Structure D) Quaternary Structure E) Pental Structure 32) Which protein structure provides the arrangement of polypeptides? A) Primary Structure B) Secondary Structure C) Tertiary Structure D) Quaternary Structure E) Pental Structure 33) Which protein structure provides the large-scale bends and folds in the protein? A).
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31) Alkaline batteries are used in automobiles. 32) To achieve the largest battery voltage possible, the battery should be assembled from a metal high on the activity series list with a metal ion low on the activity series list. 33) An electrolytic cell is a spontaneous redox reaction. 34) A spontaneous redox reaction.
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Multiple Choice Questions 1) Which fact about fuel cells is FALSE? A) Fuel cell automobiles are powered by water and the only emission is hydrogen. B) Fuel cells are based on the tendency of some elements to gain electrons from other elements. C) Fuel cell automobiles are whisper quiet. D) Fuel cell automobiles are environmentally.
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41) Which type of structure is maintained by interaction between R-groups on amino acids that are on separate chains? A) Primary Structure B) Secondary Structure C) Tertiary Structure D) Quaternary Structure E) Pental Structure 42) Which type of structure is maintained by interaction between R-groups on amino acids that are separated by short distances on the.
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Introductory Chemistry, 4e (Tro)   True/False Questions 1) Radioactivity is the emission of tiny, invisible radio signals by the nuclei of certain atoms. 2) Radioactive particles can pass through matter. 3) Antoine-Henri Becquerel discovered X-rays. 4) Madam Curie discovered two new elements. 5) contains 11 protons and 9 neutrons. 7) When an atom emits an alpha particle,.
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21) Nuclides that decay slowly have long half-lives. 22) A nuclide with a shorter half-life would be considered more active than a nuclide with a longer half-life. 23) During the first half-life you lose half of the radioactive material, during the second half life you lose the remaining half. 24) Radioactive elements become.
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Emergency responders serve to protect lives, property, and the environment. only what the Mayor directs them to protect. the community from hazardous materials. everything but hazardous materials. What is a natural science? A subject concerned with studying natural phenomena Science that comes naturally to the human race The study of man-made phenomena The study of mathematical equations What is studied.
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Multiple Choice Questions 1) A description of life is: A) Living things maintain and control their sameness. B) Living things maintain and control their changelessness. C) Living things maintain and control their equilibrium. D) Living things maintain and control their disequilibrium. E) none of the above 2) According to the collision theory of chemical reactions: A) high energy.
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11) As the number of carbon atoms increases in n-alkanes, so does their boiling point. 12) Isomerism is very rare in organic compounds. 13) Isomers are compounds with the same structures but different formulas. 14) The compound with the formula CH4 has four possible isomers. 15) Alkynes are compounds with at least one triple.
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51) Using the activity list included in this problem, which element/ion is the most resistant to oxidation? Activity Series =  A) Sn+2 B) Pb C) H2 D) Cu+2 E) none of the above 52) Using the activity list included in this problem, which element/ion is the most resistant to reduction? Activity Series = A) Sn+2 B) Pb C).
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31) Reduction involves which of the following? 1.  Loss of electron(s). 2.  Gain of electron(s). 3.  Decrease in oxidation state. A) 1 only B) 2 only C) 3 only D) 1 and 2 only E) 2 and 3 only 32) What must be done to the following half-reactions before they can be added together? Mn (s) → Mn 2+(aq) +.
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21) Lipids include all of the following compounds EXCEPT: A) phospholipids. B) glycolipids. C) carboxylic acids. D) steroids. E) All of the above are lipids. 22) Which of the following is a saturated fatty acid? A) oleic acid B) linoleic acid C) linolenic acid D) capric acid E) All of the above are saturated fatty acids. 23) Which of the following is.
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41) The reaction CH2=CH2 + Br2 → CHBrCHBr would best be described as: A) substitution. B) combustion. C) addition. D) hydrogenation. E) none of the above 42) Name the aromatic compound shown below: A) Phenyl bromide B) Benzyl bromide C) Bromobenzene D) Phenol E) none of the above 43) How many carbon atoms would be in the compound named chlorobenzene? A) 1 B).
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