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Study Resources (Chemistry)

21) When a nucleus of U-238 captures a neutron in a bombardment reaction, what atom is produced? A) U-235 B) Po-227 C) Rn-222 D) U-239 E) U-237 22) One common consumer item that takes advantage of radioactive decay is the ________. A) gas stove B) furnace C) smoke detector D) carburetor E) air conditioner 23) The product from the alpha.
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31) In any reaction catalyzed by an enzyme, the reacting molecule is called the ________. A) substrate B) cofactor C) coenzyme D) isozyme E) allostere 32) When a substance bonds to an enzyme for reaction, its place of binding is the ________. A) top of the enzyme B) primary pocket C) end pocket D) primary site E) active site 33).
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11) Which of the following contains α-1,6-branches? A) amylose B) glycogen C) cellulose D) sucrose E) maltose 12) Cellulose is not digestible by humans because it contains glucose units linked by ________-glycosidic bonds. A) α-1,2 B) α-1,4 C) α-1,6 D) β-1,2 E) β-1,4 13) Amylose is a form of starch which has A) only β-1,4-bonds between glucose units. B) only α-1,4-bonds.
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18.1   Multiple Choice Questions 1) A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a ________. A) monosaccharide B) disaccharide C) polysaccharide D) starch E) trisaccharide 2) Which group of carbohydrates cannot be hydrolyzed to give smaller molecules? A) monosaccharides B) disaccharides C) trisaccharides D) oligosaccharides E) polysaccharides 3) A monosaccharide that consists of 5 carbon.
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51) In the activity series, silver is below hydrogen, and magnesium is above hydrogen. This means that ________. A) silver can give electrons to hydrogen B) magnesium can give electrons to silver C) hydrogen can give electrons to magnesium D) hydrogen ions can give electrons to silver E) silver ions can give electrons to.
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11) In an electrochemical cell, the electrode at which oxidation takes place is called the ________. 12) The portion of the electrochemical cell that is used to maintain electrical neutrality in the two separated half-cells is called the ________. 13) In an electrochemical cell, the electrons in the electrical circuit.
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16.4   True/False Questions 1) The correct symbol for hydrogen-3 is He. 2) X rays are generated by the nucleus during radioactive decay. 3) The production of nitrogen-13 and a neutron from boron-10 by bombardment with a helium-4 nucleus is an example of radioactive decay. 4) Exposure to radiation is unavoidable because.
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41) Which is the correct solubility product expression for the solution of barium carbonate in water? A) Ksp = [Ba2+] [CO3-]2 B) Ksp = [Ba2+] [CO32-]3 C) Ksp = [Ba]2 [CO3-] D) Ksp = E) Ksp = [Ba2+] [CO32-] 42) Identify the correct form of the solubility product for silver sulfate, Ag2SO4. A) Ksp.
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15.4   True/False Questions 1) A substance is oxidized when it loses electrons. 2) A substance is reduced if it gains electrons. 3) When manganese metal forms manganese ion, Mn2+, it is reduced. 4) When copper ion is used to form copper metal, the copper ion is reduced. 5) When carbon monoxide.
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16.2   Bimodal Questions 1) A radioactive form of an element is called a ________. A) positron B) gamma ray C) radioisotope D) stable nucleus E) rad 2) The radioactive atom K emits a beta particle to produce what new atom? A) K B) K C) Ar D) Ca E) Ar 3) The radioactive atom Ra is an alpha emitter. What nucleus.
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31) What is the radioactive particle emitted in the following nuclear equation? W → Hf + ? A) alpha particle B) beta particle C) gamma ray D) proton E) neutron 32) The nuclear reaction shown below is an example of what type of reaction? B + He → N + n A) gamma emission B) fission C) transmutation D) alpha.
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41) Stomach acid consists mainly of what substance dissolved in water? A) HCl B) HBr C) CH3COOH D) H2SO4 E) NH3 42) When hydrochloric acid reacts with sodium carbonate, what gas results? A) CH3COOH B) CO C) CO2 D) NaOH E) H2O 43) When potassium hydroxide reacts with sulfuric acid, one product is ________. A) NaCl B) KCl C) H2O D) KOH E) H2SO4 44).
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13.4   Short Answer Questions 1) The minimum energy needed to convert reactants to products is the ________. 2) A substance that increases the rate of a reaction by lowering the activation reaction is called a(n) ________. 3) Equilibrium is reached when the rates of the forward and reverse reactions are ________..
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  Identify the family for each of the following compounds. A) aldehyde B) amide C) amine D) carboxylic acid E) ester F) ketone G) ether 13) CH3— CH2—O— CH3 14) O || CH3— CH2—CH 15) O || CH3— C-- CH3 16) O || CH3— CH2— C—OH 17) O || CH3— CH2—C—O— CH3 18) CH3— CH2—NH— CH3 19) O || CH3— CH2—C—NH—CH3 .
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14.1   Multiple Choice Questions 1) According to the Arrhenius concept, if HNO3 were dissolved in water, it would act as ________. A) a base B) an acid C) a source of hydroxide ions D) a source of H- ions E) a proton acceptor 2) The name given to an aqueous solution of HBr is ________. A).
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15.5   Short Answer Questions 1) Is the combustion of carbon an example of an oxidation or a reduction reaction? 2) Write the oxidation-reduction reaction for the electrochemical reaction of zinc with mercuric oxide, HgO. 3) What is the oxidation number of Mn in MnO4-? 4) In the following reaction, ________ is.
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11) In the following reaction, what substance is oxidized? 2Mg + O2 → 2MgO A) oxygen B) water C) magnesium D) magnesium oxide E) air 12) In the following reaction, what happens to the aluminum metal? Fe2O3 + 2Al → Al2O3 + 2Fe A) It is oxidized. B) It is reduced. C) It becomes soluble in water. D) It becomes.
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17.3   Matching Questions Match the following organic structures with the appropriate family name. A) aromatic compound B) ester C) alkene D) alcohol E) ether F) aldehyde G) amide H) carboxylic acid I) alkyne J) alkane K) ketone L) amine 1) CH3—CH3—CH= CH2 2) O || CH3—C— CH3 3) CH3—OH 4) O || CH3— CH2—C—OH 5) CH3— CH2—O— CH2— CH3 6) O || CH3— C—O— CH2— CH3 7) O || CH3— CH2— CH 8) HCC— CH3 9) CH3— CH2— NH2 10) O || CH3—.
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17.4   True/False Questions 1) Organic chemistry is the study of the chemistry of carbon compounds. 2) When naming an alkane, the main chain is the longest continuous carbon chain regardless of bends. 3) Polymers are large molecules consisting of repeating units. 4) Benzene is usually represented as a hexagon with a.
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21) Which of these compounds is the ester formed from the reaction of acetic acid and 1-propanol? A) O || CH3—­CH2—C—O—CH2—CH3 B) OH | CH3—C— OH | O— CH2—CH2—CH3 C) OH | CH3—CH2—COH | OCH2 --CH3 D) O || CH3C—O-- CH2—CH2—CH3 E) O || CH3—CH2—CH2—O—CH2—COH 22) The alcohol and carboxylic acid required to form propyl ethanoate are ________ and ________. A) methanol, propionic acid B) ethanol, propionic acid C) propanol, propanoic.
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15.3   Matching Questions Match the oxidation number with the correct species. A) 1- B) +3 C) 0 D) +2 E) +1 F) +4 G) -1 H) +5 I) -3 1) calcium ion 2) I2 3) chromium(III) 4) nitrogen in NH3 5) chlorine in Cl2O 6) hydrogen in H2O 7) sodium in sodium chloride 8) chlorine in carbon tetrachloride, CCl4 9) carbon in carbon dioxide 10) phosphorus in phosphate ion,.
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31) Tin reacts with nitric acid according to the following equation. What substance is the reducing agent? Sn(s) + 4HNO3(aq) → SnO2(s) + 4NO2(g) + 2H2O(g) A) Sn(s) B) H in HNO3 C) N in HNO3 D) O in HNO3 E) H2(g) 32) The correct coefficients for the oxidation-reduction reaction shown below are ________. ___CH4(g) +.
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14.2   Bimodal Questions 1) The correct formula for sulfuric acid is ________. A) H2SO4 B) H2SO3 C) H2SO4- D) H2SO3- E) SO42- 2) What is the [OH-] of a solution with [H3O+] = 2.0 × 10-5 M? A) 2.0 × 10-5 B) 5.0 × 10-5 C) 5.0 × 10-10 D) 1.0 × 10-14 E) 2.0 × 10-10 3) What is.
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17.1   Multiple Choice Questions 1) Compounds that have the same molecular formula but different arrangements of atoms are called ________. A) isomers B) isotopes C) indicators D) isozymes E) isometrics 2) What is the name of the alkyl group CH3–CH2–CH2–? A) propane B) methyl C) ethane D) ethyl E) propyl 3) What is the IUPAC name of this alkane? A) 4-ethyl-2,2-dimethylpentane B).
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16.1   Multiple Choice Questions 1) All of the isotopes of elements with atomic numbers of 84 and higher are radioactive because A) strong repulsions between their electrons make them unstable. B) strong repulsions between the protons make their nuclei unstable. C) strong repulsions between their nuclei make them unstable. D) their mass number is.
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17.2   Bimodal Questions 1) The compound below is named ________. A) hexane B) hexene C) hexyne D) benzene E) toluene 2) The name of the compound shown below is ________. A) 1-ethyl-2-methylbenzene B) 1-ethyl-4-methylbenzene C) 2-ethyltoluene D) 3-ethyltoluene E) 4-ethyltoluene 3) What is the IUPAC name for this compound? O || CH3–CH A) methyl aldehyde B) 1-ethanaldehyde C) 1-ethanone D) ethanal E) methanal 4) What is the name.
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15.2   Bimodal Questions 1) In the following reaction, oxidation occurs on which type of atom? 3Mg + N2 → Mg3N2 A) magnesium B) nitrogen C) oxygen 2) In the following reaction, what substance is reduced? 2Fe2O3 + 3C → CO2 + 4Fe A) oxygen in the iron oxide B) iron in the iron(III) oxide C) elemental carbon D) carbon.
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16.3   Matching Questions Indicate whether each of the following is characteristic of the fission or fusion process. A) fission B) fus ion C) both fission and fusion 1) A large nucleus is split into smaller nuclei. 2) Very high temperatures must be achieved to initiate the reaction. 3) This nuclear process provides the energy of the.
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