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Study Resources (Chemistry)

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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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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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 the gain of.
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Multiple Choice Questions 1) Which of the following is NOT a property of acids? A) Acids have a slippery feel. B) Acids have a sour taste. C) Acids turn litmus paper red. D) Acids dissolve many metals. E) All of the above are properties of acids. 2) Which of the following statements about acids are TRUE? 1.  An.
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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) 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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61) Radiation therapy involves: A) radioactive isotopes that are used in place of x-rays. B) radioactive isotopes that are absorbed by specific organs. C) destroying cancerous cells by intense radiation levels. D) acute radiation exposure. E) none of the above. Algorithmic Questions 1) When undergoes alpha decay, what is the atomic mass of the element that.
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True/False Questions 1) Equilibrium involves the ideas of sameness and constancy. 2) Living things are in equilibrium with their surroundings. 3) The rate of a chemical reaction is the amount of reactant that changes to product in a specific amount of time. 4) Collisions between reactant molecules do not always lead to the formation.
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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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11) When dynamic equilibrium is achieved, the concentrations of reactants is equal to the concentrations of the products. 12) When dynamic equilibrium is achieved, the rate of the forward and backward reactions go to zero. 13) The Equilibrium Constant, Keq, is a way to quantify the relative concentrations of the reactants and.
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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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True/False Questions 1) Acids have a bitter taste. 2) Acids produce H? ions in solution. 3) Acids turn litmus paper blue. 4) The main component of stomach acid is sulfuric acid. 5) The main component of vinegar is acetic acid. 6) Bases have a bitter taste. 7) Bases feel slippery. 8) Bases feel slippery because they react with.
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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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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) An Arrhenius base is a proton acceptor. 12) A Bronsted-Lowry acid is a proton donor. 13) H? is called the hydronium ion. 14) A conjugate acid-base pair are two substances related to each other by the transfer of a proton. 15) The conjugate base to HSO4- is SO42-. 16) H2SO3 and H2SO4 are considered.
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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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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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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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61) Acid rain legislation targeted the release of which compound by industry? A) CO2 B) SO2 C) dioxin D) benzene E) none of the above Algorithmic Questions 1) The titration of 25.00 mL a 0.125 M HClO4 solution required 21.37 mL of KOH to reach the endpoint. What is the concentration of the KOH? A) 0.292 M B) 0.0668.
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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, it becomes a.
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11) The Bronsted-Lowry definition of a base is: A) a proton donor. B) a proton acceptor. C) produces H? in solution. D) produces OH? in solution. E) none of the above 12) The Bronsted-Lowry definition of an acid is: A) a proton donor. B) a proton acceptor. C) produces H? in solution. D) produces OH? in solution. E) none of 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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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 things. 5) Carbon must.
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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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