2020年智慧树知道网课《BasicChemistry基础化学》课后章节测试满分答案0001

1、第一章测试【单选题】（0.5分）Solidshavea shapeandarenotappreciablyA.sharp,convertibleB.indefinite,compressibleC.indefinite,incompressibleD.definite,incompressibleE.definite,compressible参考答案E2【单选题】（0.5分）ThesymbolfortheelementpotassiumisA.KB.CaC.PD.Pt3【单选题】（0.5分）TheSIunitformassisA.troyounceB.poundC.kilogramgram【单

2、选题】（0.5分）Thetemperatureof25 Cis inkelvins.166298103D.248E. 138畚考答案B 5 【单选题】（0.5分）ThedensityofsHveris10.5g/cm3.ApieceofsHverwithamassof61.3gwouldoccupyavolumeofcm3.口 A. 5.84 B. 0.171 C. 644 D. 0.00155 E. 10.5 -ty. 谷考客案 A 6 【单选题】（0.5分）ThecorrectresultofthemolecularmasscalculationforH2SO4is.4¥5.99

3、94+32.066+2 X1.0079 A r. 98.08 B.98.84 C. 98.074 口 D. 98.079 E. 98.838参考答案 D 7【单选题】(0.5分)Thereare significantfiguresintheanswertothefollowingcomputation:(29.2-20.0)(1.79 105)/1.39 A. 4 B. 1 C. 2 D. 5 E. 3畚考答案 c 8 【单选题】(0.5分)Ofthefollowing,isthesmallestmass.A.2.5 209fgB.2.5 X010ngC.2.5 X0-2mgD.2.5 X0

4、15pgE.25kg9【单选题】（0.5分）Accuracyrefersto.A.howcloseameasurednumberistoinfinityB.howcloseameasurednumberistozeroC.howcloseameasurednumberistoothermeasurednumbersD.howcloseameasurednumberistothecalculatedvalueE.howcloseameasurednumberistothetruevalue畚考答案E10【单选题】（0.5分）Inwhichoneofthefollowingnumbersareal

5、lofthezerossignificant?A.0.14329B.100.09009C.0.003002D.0.1E.0.05843参考答案B第二章测试1【单选题】（0.5分）Acertainmassofcarbonreactswith13.6gofoxygentoformcarbonmonoxide.gr amsofoxygenwouldreactwiththatsamemassofcarbontoformcarbondioxide,accordingtoth elawofmultipleproportions?CA.13.6cB.25.6C.27.2D.136E.6.8参差备案c2【单选

6、题】（0.5分）Whichstatementbelowcorrectlydescribestheresponsesofalpha,beta,andgammaradiatio ntoanelectricfield?A.Onlyalphaisdeflected,whilebetaandgammashownoresponseB 1 B.Alphaandbetaaredeflectedinoppositedirections,whilegammashowsnoresponseC.Bothbetaandgammaaredeflectedinthesamedirection,whilealphashows

7、noresponseD.Bothalphaandgammaaredeflectedinthesamedirection,whilebetashowsnoresponseE.Bothalphaandbetaaredeflectedinthesamedirection,whilegammashowsnoresponse参考答案B3【单选题】（0.5分）and resideintheatomicnucleus.A.noneoftheaboveB.Neutrons,onlyneutronsC.Electrons,neutronsD.Protons,electronsE.Protons,neutrons

8、【单选题】（0.5分）Whichoneofthefollowingisnottrueconcerningcathoderays?A.TheytravelinstraightlinesintheabsenceofelectricormagneticfieldsB.ThecharacteristicsofcathoderaysdependonthematerialfromwhichtheyareemittedC.TheyaremadeupofelectronsD.TheyoriginatefromthenegativeelectrodeE.Theyimpartanegativechargetome

9、talsexposedtothem参考答案5【单选题】（0.5分）ThechargeonanelectronwasdeterminedintheA.DaltonatomictheoryB.MillikanoildropexperimentC.RutherfordgoldfoilexperimentD.atomictheoryofmatterE.cathoderaytube,byJ.J.Thompson参考答案B6【单选题】(0.5分)IntheRutherfordnuclear-atommodel,A A.massisspreadessentiallyuniformlythroughoutth

10、eatomB.thelightsubatomicparticles,protonsandneutrons,resideinthenucleusC.theheavysubatomicparticles,protonsandneutrons,resideinthenucleus thethreeprincipalsubatomicparticles(protons,neutrons,andelectrons)allhaveessentiallythesamemass thethreeprincipalsubatomicparticles(protons,neutrons,andelectrons)

11、allhaveessentiallythesamemassand massisspreadessentiallyuniformlythroughouttheatom【单选题】（0.5分）AllatomsofagivenelementhavethesameA.densityB.numberofneutronsC.numberofprotonsD.numberofelectronsandneutronsE.mass【单选题】（0.5分）Anatomofthemostcommonisotopeofgold,197Au,tons,neutrons,and electrons.A.118,

12、79,39B.79,118,118C.79,197,197D.197,79,118E.79,118,79畚考答案E9【单选题】（0.5分）Whichcombinationofprotons,neutrons,andelectronsiscorrectfortheisotopecopper-63,?A.34p+,34n ° ,29e-B.29p+,29n ° ,63e-C.34p+,29n ° ,34e-D.29p+,34n ° ,29e-E.63p+,29n ° ,63e-参考答案D10【单选题】（0.5分）Isotopesareatomsth

13、athavethesamenumberof butdifferingnumberof. A. electrons,protonsB.neutrons,protonsC.protons,neutronsD.neutrons,electronsE.protons,electrons参考答案第三章测试1【单选题】（0.5分）iscreditedwithdevelopingtheconceptofatomicnumbers.A.DmitriMendeleevB.LotharMeyerC.MichaelFaradayD.HenryMoseleyE.ErnestRutherford参考答案D#【单选题】（

14、0.5分）ElementsinthemodernversionoftheperiodictablearearrangedinorderofincreasingA.averageatomicmassB.numberofisotopesC.atomicmassD.atomicnumberE.oxidationnumber【单选题】（0.5分）Thefirstionizationenergiesoftheelements asyougofromlefttorightacrossaperiodoftheperiodictable,and asyougofromthebottomtothetopofag

15、roupinthetabl e.A.increase,increase decrease,increaseC.decrease,decreaseD.increase,decreasearecompletelyunpredictableTSL整考答案A4【单选题】(0.5分)Ingeneral,asyougoacrossaperiodintheperiodictablefromlefttoright:(1)theatomicradius_ ;(2)theelectronaffinitybecomes negative;and(3)thefirstionizationenergy. A.incre

16、ases,increasingly,increasesB.increases,increasingly,decreasesC.decreases,decreasingly,increases O D.decreases,increasingly,increasesE.decreases,increasingly,decreases参考答案D5【单选题】(0.5分)Whichofthefollowingtraitscharacterizesthealkalimetals?A rA.formationofdianionsB.thesmallestatomicradiusinaperiodC.the

17、lowestfirstionizationenergiesinaperiodD.existenceasdiatomicmoleculesE.veryhighmeltingpoint参差备案c6【单选题】（0.5分）OxidesoftheactivemetalscombinewithwatertoformA. metalhydridesB. oxygengasC. hydrogengasD. waterandasaltE.metalhydroxides参考答案F【单选题】（0.5分）Analkalineearthmetalformsacompoundwithoxygenwiththeformul

18、a.（Thesym bolMrepresentsanyoneofthealkalineearthmetals.）A.M2O2B.M2OC.MOD.MO2E.MO3【单选题】（0.5分）Whichnon-metalexistsasadiatomicsolid?A.phosphorusB.antimonyC.bromineD.boronE.iodine参考答案9【单选题】（0.5分）Theonlynoblegasthatdoesnothavethens2 np 6valenceelectronconfigurationisA.neonB.kryptonC.Allnoblegaseshavethen

19、s 2np6valenceelectronconfigurationD.heliumE.radon参考答案10【单选题】（0.5分）WhatistheoxidationnumberofchromiuminCr(NH3)4Cl2Cl-2-3A.B.C.D.E.参考答案E第四章测试 i 【单选题】（0.5分）Thereare pairedand unpairedelectronsintheLewissymbolforaphosphorusatom. A. 2,4 B. 0,3 C. 2,3 D. 4,2 E. 4,3参考答案 c 2 【单选题】（0.5分）Thereare unpairedelec

20、tronsintheLewissymbolforanoxygenatom.A rA. 4 c B. 0 c C.1D.3口 E.2参考答案E3【单选题】（0.5分）Theelectronconfigurationofthephosphideion（P 3-）isA.Ne3s 23p6B.Ne3P 2C.Ne3s 23p3D.Ne3s 23p1E.Ne3s 2参考答案A4【单选题】（0.5分）Elementsfromoppositesidesoftheperiodictabletendtoform.0ArA.covalentcompoundsB.ioniccompoundsC.covalentc

21、ompoundsthataregaseousatroomtemperatureD.homonucleardiatomiccompoundsE.compoundsthataregaseousatr00mtemperature【单选题】（0.5分）DetermininglatticeenergyfromBorn-HabercycledatarequirestheuseofA.Avogadro'snumberB.Coulomb'slawC.PeriodiclawD.theoctetruleE.Hess'slaw参考答案F#【单选题】（0.5分）Howmanyhydrogena

22、tomsmustbondtosilicontogiveitanoctetofvalenceelectrons?A.B.C.D.E.【单选题】（0.5分）Inthemoleculebelow,whichatomhasthelargestpartialnegativechargeA.B.C.D.ClE.Br【单选题】（0.5分）Electronegativityfromlefttorightwithinaperiodandfromtoptobottomwithinagroup.A.increases,staysthesameB.increases,decreasesC.staysthesame,i

23、ncreasesD.increases,increases decreases,increases畚考答案B9【单选题】(0.5分)TheLewisstructureofAsH 3shows nonbondingelectronpair(s)onAs.A rA.0B.Thiscannotbedeterminedfromthedatagiven.C.D.E.畚考答案10【单选题】（0.5分）TheformalchargeoncarboninthemoleculebelowisA.B.C.D.E.-1参考答案第五章测试1【单选题】（0.5分）ThecorrectnameforK 2SisA.dip

24、otassiumsulfateB.potassiumsulfateC.potassiumdisulfideD.potassiumbisulfideE.potassiumsulfide参考答案E2【单选题】（0.5分）ThecorrectnameforH 2SO 3 isA.sulfurhydroxideB.hydrosulfuricacidC.hydrosulficacidD.sulfuricacidE.sulfurousacid参考答案F3【单选题】(0.5分)ThecorrectnameofthecompoundNa 3NisA.sodiumtrinitrideB.sodiumnitrid

25、eC.trisodiumnitride D.sodiumazideE.sodium(IX)nitride畚考答案B4【单选题】(0.5分)TheionsCa 2+andPO 43-formasaltwiththeformulaA.Ca(PO 4)2B.Ca3(PO4)2C.CaPO4D.Ca2PO4Ca2(PO4)3【单选题】（0.5分）ElementMreactswithfluorinetoformanioniccompoundwiththeformulaMF3.TheM-ionhas18electrons.ElementMisA.ArB.CaC.D.ScE.Cr【单选题】（0.5分）The

26、conjugatebaseofHSO4-isA.HSO4+B.H2SO4H3SO4+D.1.92 X0-10OH-E.SO42-；考答案.E7CinwhichH +is0.00250 M?【单选题】（0.5分）WhatisthepHofanaqueoussolutionat25.0A.3.4B.2.6C.-3.4D.2.25E.-2.6畚考答案B8【单选题】（0.5分）CwithpH=4.282?Whatistheconcentration（inM）ofhydroniumionsinasolutionat25.0A.5.22 ¥0-5B.1.66 ¥04C.4.28D.9.

27、71畚考答案A9【单选题】（0.5分）WhatisthepHofa0.0150 M aqueoussolutionofbariumhydroxide? r A.12.2B.1.52C.10.4D.1.82E.12.5参考答案E第六章测试1【单选题】（0.5分）.NH3(g)+O2(g)Whenthefollowingequationisbalanced,thecoefficientsareNO2(g)+H2O(g)A.2,3,2,31,3,1,2C.4,3,4,3D.1,1,1,1E.4,7,4,6参考答案【单选题】（0.5分）.Al(s)+H2O(l)Whenthefollowingequa

28、tionisbalanced,thecoefficientofAlis l(OH)3(s)+H2(g)A.B.C.D.E.【单选题】（0.5分）2is.C2H4O(g)+O2Whenthefollowingequationisbalanced,thecoefficientofO4(g)CO2(g)+H2O(g)A.B.C.D.E.参考答案【单选题】（0.5分）Writethebalancedequationforthereactionthatoccurswhenmethanol,CH3CH(l)isburnedinair.Whatisthecoefficientofmethanolintheb

29、alancedequation?A.B.C.D.1.5E.3畚考答案B5【单选题】(0.5分)Thebalancedequationforthedecompositionofsodiumazideis.A.2NaN3(s) - 2Na(s)+3N2(g)B.NaN 3(s) - Na(s)+N2 (g)+N(g)C.NaN 3(s) - Na(s)+N2(g)D.2NaN 3(s) - 2Na(s)+2N2(g)E.2NaN 3(s) - Na2(s)+3N2(g)参考答案A6【单选题】(0.5分)Thesolubilityofmanganese(II)hydroxide(Mn(OH) 2)i

30、s2.2 10-5M.WhatistheK spofMn(OH) 2?A rA.4.3 X0-14B.4.8 X0-10C.1.1 X0-142.12.2D.X0-14E.X0-5参考答案A7【单选题】（0.5分）Whatistheempiricalformulaofacompoundthatcontains49.4%K,20.3%S,and30.3%Obym ass?A.KSO2B.K2SO4C.K2SO3D.KSO4E.KSO3公七.a* *C8【单选题】（0.5分）Acompoundcontains40.0%C,6.71%H,and53.29%Obymass.Themolecularwe

31、ightofthec ompoundis60.05amu.ThemolecularformulaofthiscompoundisA.C2H3O4B.C2H4O2C.C2H2O4D.CHO2E.CH2O参考答案【单选题】（0.5分）Magnesiumandnitrogenreactinacombinationreactiontoproducemagnesiumnitride:3Mg+N2f Mg3N2Inaparticularexperiment,a9.27gsampleofN2reactscompletely.ThemassofM24.1gconsumedisg.A.16.1B.0.92C.1

32、3.9D.8.04E.参考答案310BaCrO4+2KCl(b)P【单选题】（0.5分）Whichofthefollowingreactionsisaredoxreaction?(a)K2CrO4+BaCl2 b22+2Br- f PbBr(c)Cu+S - CuSA.(c)onlyB.(a)onlyC.(b)only(a)and(c)E.(b)and(c)第七章测试1Nonanareaof5.5m【单选题】（0.5分）Agasatapressureof10.0PaexertsaforceofA.55B.C.1.8D.5.5E.18参考答案 A 2 【单选题】（0.5分）Agasvesseli

33、sattachedtoanopen-endmanometercontaininganon-volatileliquidofdensityO. 791g/mLasshownbelow.Thedifferenceinheightsoftheis755mmHg.Giventhatthedensityof mercuryis13.6g/mL,thepressureoftheenclosedgasis atm.liquidinthetwosidesofthemanometeris43.4cmwhentheatmosphericpressure A. 0.96 B. 0.993 C. 0.987 D. 1

34、.030.99参考答案A【单选题】（0.5分）Asampleofagas(5.0mol)at1.0atmisexpandedatconstanttemperaturefrom10Lto15L.Thefinalpressureisatm.77.3A.7.5B.3.3C.1.5D.0.67E.15参考答案【单选题】（0.5分）AsampleofH 2gas(12.28g)occupies100.0Lat400.0Kand2.00atm.Asampleweighing9.49goccupiesLat353Kand2.00atm.A.147B.68.2C.54.7D.109E.参考答案B5Cconta

35、ins molofgas.【单选题】(0.5分)A0.325Lflaskfilledwithgasat0.914atmand19A.1.24 ¥0-2U B.12.4C.1.48 ¥0-2D.80.7E.9.42【单选题】（0.5分）Asampleofgas(1.3mol)occupiesLat22C and2.5atm.0.94B.31C.3.2X0-2D.0.79E.13畚考答案E7【单选题】（0.5分）AflaskcontainsamixtureofHeandNeatatotalpressureof2.6atm.Thereare2.0molofHeand5.Omolo

36、fNeintheflask.ThepartialpressureofHeis atm.A.9.1百B.1.04C.0.74D.6.5E.1.86*伊1-书'ric8【单选题】（0.5分）Theroot-mean-squarespeedofCOat113 Cis m/s.CA.317B.586C.993口 D. 31.5E. 58.3参考答案B9【单选题】（0.5分）AsampleofN 2gas（2.0mmol）effusedthroughapinholein5.5s.Itwilltake sforthesameamountofCH 4toeffuseunderthesamecondi

37、tions.A. 7.3B.9.6C.4.2D.5.5E. 3.1参考答案c10【单选题】（0.5分）UsingthevanderWaalsequation,thepressureina22.4Lvesselcontaining1.00molofneonga sat100 Cis atm.( a=0.211L 2atm/mol 2,b=0.0171L/mol)A. 1.37B.0.3670.73n d.1.21E.1参考答案A第八章测试1【单选题】(0.5分)Asolutionispreparedbydissoking15.0gofNH3in250gofwater.Thedensityofth

38、eresultingsolutionis0.974g/mL.ThemolefractionofNH 3inthesolutionis.A.0.922B.0.940.0597D.16.8E.0.#4参考口案C2【单选题】(0.5分)Thevaporpressureofpurewaterat25C is23.8torr.Determinethevaporpressure(torr)ofWaterat25 Caboveasolutionpreparedbydissoking35gofurea(anon-volatile,non-electrolyte, MW=60.0g/mol)in75gofwat

39、er.A. 21B. 0.88C. 2.9D.3.3E.27参考答案A3【单选题】(0.5分)Thefreezingpointofethanol(C2H5OH)is-114.6 C.Themolalfreezingpointdepressionconstantforethanolis2.00 C/m .Whatisthefreezingpoint(C)o fasolutionpreparedbydissolving50.0gofglycerine(C 3H8O3anonelectrolyte)in200gofethanol?A rA.-5.42B.-132.3C.-115D.-114.6E.-120【单选题】（0.5分）C.Whatis themoleAsolutionispreparedbydissoking6.00gofan