雨课堂学堂在线学堂云《General Chemistry（山东师大 ）》单元测试考核答案

注：不含主观题第1题多选题(2分)Ifasampleofmatterisuniformthroughoutandcannotbeseparatedintoothersubstancesbyphysicalmeans,itisAacompoundBanelementCahomogeneousmixtureDaheterogeneousmixture正确答案：AB第2题多选题(2分)WhichofthefollowingoptionsareSIunits?AgBmCMDs正确答案：BD第3题多选题(2分)Whichofthefollowingnumbershastwosignificantdigits?A0.2B6C0.03D0.056正确答案：AB第4题多选题(2分)Whichofthefollowingdefinitionsisincorrect?AAccuracyshowshowcloseameasurementistothetruevalue.BSystematicerrorsaremeasuringinstrumentshavebuild-in,orinherenterrorsCIntensivepropertydependsonthequantityofmatterobservedDSIderivedunitfordensityisg/cm3正确答案：CD第5题多选题(2分)Whichofthesampleofmatterlistedisaheterogeneousmixture?AawoodenbeamBredinkCdeiomizedwaterDfreshlysqueezedorangejuice正确答案：AD第6题判断题(1分)Mixturesandpuresubstancescanbesepeartedbyphysical.第7题判断题(1分)Celsiusistheunitofthetemperature.第8题判断题(1分)Systematicerrorscausedbylimitationsinanexperimenter’sskillorabilitytoreadascientificinstrument.第9题判断题(1分)0.08Lhas2significantfigures.第10题判断题(1分)Inphysicalchange,someofthephysicalpropertiesofthesamplemaychange,anditscompositionchanged.第11题判断题(1分)Cantherebeatemperatureatwhich°Cand°Fhavethesamevalue?Cantherebemorethanonesuchtemperature?第12题判断题(1分)1in.=2.54cmisamoreprecisestatementcamparedwith1m=39.37in.第13题判断题(1分)(0.225*0.0035)/(2.16*10-2)=0.0364583第14题判断题(1分)77oFishigherthan300K第15题判断题(1分)Absolutezerocanbeachieved第16题单选题(1分)Indicatewhethereachofthefollowingisanexactnumber？AthenumberofsodacansinacaseBthevolumeofmilkinaliterbottleCthedistancebetweenEarthandthesunDthedistancebetweenthecentersofthetwooxy_x0002_genatomsintheoxygenmolecule第17题单选题(1分)Thespeedofsoundinairisabout343m/s.Whatisthisspeedinmilesperhour?A767.43B1234.79C20579.91D12.79第18题单选题(1分)3.70-2.9133=A0.7867B0.787C0.79D0.8第19题单选题(1分)Whatistheaverageofthreemeasuredlengths;6.64,6.68and6.70?A7B6.67C6.67333D7第20题单选题(1分)Whichofthefollowingisseparatedbychemicalchange?AsugarandsandBironfromironoxide(rust)CpurewaterfromseawaterDwaterandsand第21题单选题(1分)Whichofthefollowingpropertyischemical?AAnironnailisattractedtoamagnetBCharcoallighterfluidisignitedwithamatchCAblockofwoodfloatsonwaterDAsaoohireisblue第22题单选题(1分)Whichofthefollowingoptioniswrong?A38.4*10-3*6.36*105=2.44*104B(1.45*102*8.76*10-4)/(9.2*10-3)2=1.5*103C24.6+18.35-2.98=40.00D1.646*103-2.18*102+(1.36*104*5.17*10-2）=2.131*103第23题单选题(1分)Whichofthesampleofmatterlistedisahomogeneousmixture?AiceBalloyCslurryDfreshair第24题单选题(1分)Whichofthefollowingoptioniswrong?A1mile=1609.344mB10kpa=75mmHgC250C=800FD250C=298.15K第25题单选题(1分)Whichofthefollowingnumbershasfoursignificantdigits?A5.789B0.0008C5.10*105D0.042第26题单选题(1分)Whichofthefollowingoptioniswrong?ABoilingpointofwater:2020FBbodytemperature:370CCfreezingpointofwater:273KDroomtemperature:770F第27题单选题(1分)A(n)____________isasubstancethatcannotbeseparatedintosimplersubstancesbychemicalmeans.AmixturesBelementsCatomDmolecule第28题单选题(1分)_____________–howcloseameasurementistothetruevalueAaccurateBpreciseCaccurateandpreciseDnone第29题单选题(1分)Whichofthefollowingoptionsischemicalproperties?AVolatilizeBMeltingpointCThermalConductivityDOxidation第30题单选题(1分)Whichofthefollowingoptioniswrong?AHomogeneousmixturesandHeterogeneousmixturescanbeseparatedbyphysicalmethods.BCompoundsandelementscanbeseparatedbychemicalmethodsCElementisasubstancemadeupofonlyasingletypeofatomDMoleculeisthesmallestentityhavingthesameproportionsoftheconstituentatomsasdoesthecompoundasawholeChapter2第1题判断题(1分)Thereareasmanyelectronsoutsidethenucleusasthereareunitsofpositivechargeonthenucleus.Theatomasawholeiselectricallyneutral第2题判断题(1分)TheapproximatenumberofNAis6.02×10²³mol⁻¹第3题单选题(1分)Inachemicalreaction,ina0.5litercontainer,theamountofmolesofreactantBgoesfrom2.0molesto0.5molesin5seconds,andtherateofchemicalreactionin5secondsisA3mol/LB0.3mol/L*sC0.6mol/L*sD0.1mol/L*s第4题判断题(1分)TheappromatenumberofNais6.02×10²³mol⁻¹第5题多选题(2分)Whatisthenuclearmadeof?AprotonBneutronCatomDelectron正确答案：AB第6题判断题(1分)X-raysareharmlesstothehumanbody第7题判断题(1分)Atomscanbeneithercreatednordestroyedduringachemicalchange第8题单选题(1分)Whatistheessenceofcathoderays?AprotonBneutronCelectronDatom第9题多选题(2分)Brominehastwonaturallyoccurringisotopes.Oneofthem,bromine-79,hasamassof78.9183uandanabundanceof50.69%.Whatmustbethemassandpercentnaturalabundanceoftheother,bromine-81A80.92uB81.00uC0.4931D0.5069正确答案：AC第10题单选题(1分)when0.455gofmagnesiumreactedwith2.315gofoxygen,0.755gofmagnesiumoxidewasobtained.Determinethemassofmagnesiumcontainedina0.500gsampleofmagnesiumoxideA0.455gB0.755gC0.301gD0.199g第11题判断题(1分)Mercuryisametallicelement第12题判断题(1分)Allsamplesofacompoundhavethesamecompositionthesameproportionsbymassoftheconstituentelements.第13题单选题(1分)A0.455gsampleofmagnesiumisallowedtoburnin2.315gofoxygengas.Whatmassofmagnesiumoxideisproduced?A2.770gB0.755gC2.015D1.334g第14题单选题(1分)Howmanygroupsdoestheperiodictablehave?A16B7C18D8第15题判断题(1分)Cathoderaysaredeflected(偏转)inanelectricfield第16题单选题(1分)Twochargedbodiesthatareattractedtoeachother,howelectricallydotheybehave？AbothpositivelychargedBbothnegativelychargedCbothneutralDOnepositivechargeandonenegativecharge第17题单选题(1分)WhatistrueabouttheC-13AThenumberofprotonsis6BTheneutronnumberis6CThenumberofelectronsis13DThemassnumberis6第18题单选题(1分)What'sthelargestnumberofmoles?A1gH2B11gCO2C8gO2D4.5gH2O第19题单选题(1分)Theelectricalpropertiesofthethreeparticles,1.αparticles2βparticles3γparticlesAnegative,neutral,positiveBneutral,positive,negativeCpositive,negative,neutralDneutral,negative,positive第20题判断题(1分)carbon-12atomsaremuchmoreabundantthancarbon-13第21题多选题(2分)WhichcanbedeflectedinanelectricfieldAαparticlesBγparticlesCβparticlesDXRys正确答案：AC第22题单选题(1分)ThetotalnumberofprotonsandneutronsinanatomiscalledAtheatomicnumberBtheprotonnumberCthemassnumberDtheneutronnumber第23题判断题(1分)Theisotopeshavethesamenumberofneutrons第24题单选题(1分)Whatvolumeof10.0MH2SO4isrequiredtoprepare4.0Lof0.50MH2SO4?A0.20LB0.40LC0.50LD1.0L第25题单选题(1分)Inthesampleofsulfurweighing4.07g,whatisthetotalnumberofsulfuratomsinthesample?A0.127molB7.64*10^22C7.64*10^23D7.64*10^21第26题单选题(1分)Howmanymolesofoxygendoesittaketocompletelyburn1moleofmethane?A2molB2NAC1.5molD3mol第27题判断题(1分)STPusuallyreferstothetemperatureof0℃andthepressureof101.325kPa第28题单选题(1分)Whichoneisnoblegas?AHBHeCBrDAg第29题多选题(2分)Whatarethefollowingtransitionmetals?AFeBMgCClDZn正确答案：AD第30题判断题(1分)AlkalimetalsareallfirstperiodelementsChapter3第1题单选题(1分)whichempiricalformulaofbenzenistrue?APhBCHCC6H6DAr第2题单选题(1分)HowmanymolesofFatomsareina79.5mLsampleofhalothaned=1.871g/mLA2.26molFB3.11molFC2.68molFD3.45molF第3题单选题(1分)HowmanyCatomsarepresentpermoleofC2HCl2F3?A1.225×10^28B1.314×10^27C1.204×10^24D1.158×10^26第4题单选题(1分)WhatisthemasspercentcompositionofhalothaneC2HBrClF3?A%C=12.17%,%H=0.51%%Br=40.48%,%Cl=17.96%%F=28.88%B%C=13.27%,%H=0.51%%Br=40.68%,%Cl=18.96%%F=26.58%C%C=11.17%,%H=0.42%%Br=44.44%,%Cl=16.96%%F=27.01%D%C=11.10%,%H=0.61%%Br=40.01%,%Cl=18.86%%F=29.41%F第5题单选题(1分)IndicatetheoxidationstateofSinSO3A6B4C3D8第6题单选题(1分)Explainwhichofthefollowingstatement(s)is(are)correctconcerningglucose(bloodsugar)C6H12O6AThepercentages,bymass,ofCandOarethesameasinCO.BTheratioofatomsisthesameasindihydroxyacetone（CH2OH)2COCTheproportions,bymass,ofCandOareequal.DThehighestpercentage,bymass,isthatofH.第7题单选题(1分)WhichoxidationstateofSinfollowingcompoundis+6?ASO32-BS2O32-CS4O62-DS2O82-第8题单选题(1分)Withoutdoingdetailedcalculations,explainwhichofthefollowinghasthegreatestmasspercentofsulfur:ASO2BS2Cl2CCH3CH2SHDNa2S第9题单选题(1分)FindtheEnglishnameofNO2-AnitriteionBnitrateionCnitrterionDnitrieteion第10题单选题(1分)Whichofthefollowingnamesismostappropriateforthemoleculewiththestructureshownbelow?CH3CH2CHOHCH3AbutylalcoholB2-butanolC1-butanolDisopentylalcoho第11题单选题(1分)ForthemineraltorbernitedetermineCu(UO2)2(PO4)2·8H2Othetotalnumberofrelativemolecularmassinoneformulaunit（U=238P=31)A906B668C842D968第12题单选题(1分)Acertainhydrateisfoundtohavethecomposition20.3%Cu,8.95%Si,36.3%F,and34.5%bymass.Whatistheempiricalformulaofthishydrate?ACuSi2F6·6H2OBCu2SiF6·5H2OCCuSi2F5·6H2ODCuSiF6·6H2O第13题单选题(1分)Writethestructureformulafortheorganiccompound:3-hexanolACH3CH2CH2CH2OHCH2CH3BCH3CH2OHCH2CHCH2CH3CCH2OHCH2CH2CH2CH2CH3DCH3CH2CH3OHCH2CH2CH3第14题单选题(1分)NamethecompoundsCa(H2PO4)2.Acalciumhydrogenphosphate.Bcalciumhydrogendiphosphate.Ccalciumdihydrogenphosphate.Dcarbonhydrogenphosphate.第15题单选题(1分)WhatistheoxidationstateoftheunderlinedelementinAl2O3;P4;Fe3O4A3,2,8/3B4,0,9/3C2,0,5/3D3,0,8/3第16题多选题(2分)Explainwhichofthefollowingstatement(s)is(are)correctforsorbicacidC6H8O2,aninhibitorofmoldandyeastAIthasamassratioof3:4:1.BIthasthesamemasspercentcompositionastheaquaticherbicide,acroleinC3H4OCIthasthesameempiricalformulaasaspidinol,C12H16O4,adrugusedtokillparasiticworms.DIthasfourtimesasmanyHatomsasOatoms,butfourtimesasmuchOasHbymass.正确答案：BC第17题多选题(2分)Whichofthefollowingstructuresareisomers?ACH3CH(CH2CH3)CH2ClBCH3CH(CH2Cl)CH2CH3CCH3CHCHCl(CH3)2D(CH3)2CHCH2CHClCH3正确答案：AB第18题多选题(2分)WhichofthefollowingcompoundhavesameoxidationstateASO2BSF4CS2O32-DSO3正确答案：AB第19题多选题(2分)whichcompoundsarealkane?ACH4BC2H4CC6H14DC4H8正确答案：AC第20题多选题(2分)Whichofthefollowingcompoundhavesameoxidationstate?AH2SO3BSO3CH2S2O7DSF6正确答案：BCD第21题判断题(1分)ClO2nameischlorinedioxide第22题判断题(1分)calciumhypochloriteisCa(ClO2)2第23题判断题(1分)theoxidationstateoftheunderlinedelementKO2is-1/2第24题判断题(1分)theoxidationstateoftheunderlinedelementCl2Ois+2第25题判断题(1分)empiricalformulaofPentaneisCH第26题判断题(1分)C6H10O2hasthesameempiricalformulaasaspidinol,C12H16O4,adrugusedtokillparasiticworms第27题判断题(1分)themasspercentHinthehydrocarbondecaneC10H22is15.5%第28题判断题(1分)themasspercentOinthemineralmalachite,Cu2(OH)2CO3(Cu=64)is33.04%第29题判断题(1分)CH3CH(CH2CH3)CH2OHandCH3CH2CH2CH2CH2OHareisomers第30题判断题(1分)Anhydroussodiumsulfate,absorbswatervaporandisconvertedtothedecahydrate,Na2SO4·10H2OHowmuchwouldthemassof23.05gofanhydrousincreaseifconvertedcompletelytothedecahydrate?Increase29.21gChapter4第1题单选题(1分)Withoutperformingdetailedcalculations,determinewhichreactionproducesthemaximumquantityofpergramofreactant.A2NH4NO3(s)→Δ2N2(g)+4H2O(l)+O2(g)B2Ag2O(s)→ΔAg(s)+O2(g)C2HgO(s)→Δ2Hg(l)+O2(g)D2Pb(NO3)2(s)→Δ2PbO(s)+4NO2(g)+O2(g)第2题单选题(1分)?Cu(s)+?HNO3(aq)→?Cu(NO3)2(aq)+?H2O(l)+?NO(g)Whentheequationisbalanced,thecorrectsetofstoichiometriccoefficientsisA1,6→1,3,4B1,4→1,2,2C2,6→2,3,2D3,8→3,4,2.第3题单选题(1分)HowmanymolesofNO(g)canbeproducedinthereactionof3.00molNH3(g)and4.00molO2(g)？4NH3(g)+5O2(g)→4NO(g)+6H2O(l)A3molB4molC2.4molD4.5mol第4题单选题(1分)Howmanymolarofareproducedbythereactionof1.84gAlwith75.0mLof2.95MHCl?A1.02molB2.04molC0.51molD3.06mol第5题单选题(1分)Inthereactionof277gcarbontetrachloridewithanexcessofHF,187gCCl2F2isobtained.Whatarethetheoreticalyieldsofthisreaction?A0.858B0.856C0.857D0.8578第6题单选题(1分)Howmanygramsofhydrogencanbeproducedfrom42.7gFeandanexcessofH2O（g）(steam)?3Fe(s)+4H2O(g)→ΔFe3O4(s)+4H2(g)A2.03gB4.06gC1.02gD3.03g第7题单选题(1分)Whatarethemolaritiesofthefollowingsoluteswhendissolvedinwater?2.92molmethanolin7.16LofsolutionA0.204MB0.408MC0.4078MD0.407M第8题单选题(1分)Whatarethemolaritiesofthefollowingsoluteswhendissolvedinwater?57.5g(CH3)2COin525mLofsolutionA1.88MB1.888MC1.89MD1.80M第9题单选题(1分)A10.00mLsampleof2.05MKNO3isdilutedtoavolumeof250.0mL.Whatistheconcentrationofthedilutedsolution?A0.082MB0.82MC8.2MD0.0082M第10题单选题(1分)Howmanygramsofsodiummustreactwith155mLH2Otoproduceasolutionthatis0.175MNaOH.(Assumeafinalsolutionvolumeof155mL.)A0.624gB0.6237gC6.238gD0.623875g第11题单选题(1分)Howmanygramsoflithoponeareproducedinthereactionof315mLof0.275MZnSO4and285mLof0.315MBaS?A8.4gB8.40gC8.402gD8g第12题单选题(1分)Inanexperiment,7.81gAl2O3andexcessHF(g)weredissolvedin3.50Lof0.141MNaOH.If28.2gNa3AlF6wasobtained,thenwhatisthepercentyieldforthisexperiment?Al2O3(s)＋6NaOH(aq)＋12HF(g)2→Na3AlF6(s)＋9H2O(l)A0.816B0.8163C0.8162D0.82第13题单选题(1分)Thereactionof15.0gC4H9OH22.4gNaBr,and32.7gH2SO4yields17.1gC4H9Brinthereactionshown.C4H9OH+NaBr+H2SO4→C4H9Br+NaHSO4+H2OWhatarethetheoreticalyieldofthisreaction?A27.77gB27.8gC28.0gD27.80g第14题单选题(1分)Whatvolumeof10.0MH2SO4isrequiredtoprepare4.0Lof0.50MH2SO4?A0.20LB0.40LC0.50LD1.0L第15题单选题(1分)Whatvolumeof5.0MH2SO4isrequiredtoprepare125mLof0.50MH2SO4?A12.5mlB25.0mlC1.25mlD2.5ml第16题判断题(1分)Balancethefollowingequationsbyinspection.PCl3+3H2O→H3PO3+3HCl第17题判断题(1分)0.0873isfoursignificantnumber第18题判断题(1分)ferricoxideisFeO第19题判断题(1分)3.876isfoursignificantnumber第20题判断题(1分)2NH4NO3(s)→Δ2N2(g)+4H2O(l)+O2(g)Theequationisdecompositionreaction第21题判断题(1分)K2CrO4(aq)+2AgNO3(aq)→Ag2CrO4(s)+2KNO3(aq)TheequationisMetathesisreaction第22题判断题(1分)2NH3(g)+CO2(g)¡CO(NH2)2(s)+H2O(l)TheequationisMetathesisreaction第23题判断题(1分)Dryiceispure.第24题判断题(1分)Mercuryisametallicelement第25题判断题(1分)4NH3(g)5O2(g)→4NO(g)6H2O(g)ThereactionisDisplacementreaction第26题多选题(2分)Thereactionof15.0gC4H9OH22.4gNaBr,and32.7gH2SO4yields17.1gC4H9Brinthereactionshown.C4H9OH+NaBr+H2SO4→C4H9Br+NaHSO4+H2OWhatarethe(a)theoreticalyield(b)precentyieldofthisreactionA27.77gB27.8gC0.615D0.616正确答案：BC第27题多选题(2分)Ifasampleofmatterisuniformthroughoutandcannotbeseparatedintoothersubstancesbyphysicalmeans,itisAacompoundBanelementCahomogeneousmixtureDaheterogeneousmixture正确答案：AB第28题多选题(2分)If46.3gPCl3isproducedbythereaction.howmanygramseachofCl2andP4areconsumed?6Cl2(g)+P4(s)→4PCl3(l)A10.4gB10.43gC35.9gD35.86g正确答案：AC第29题多选题(2分)Whichstatementsarecorrectforthereaction2H2S+SO2→3S+2H2OA3molSisproducedpermoleofH2SBThenumberofmolesofproductsformedequalsthenumberofmolesofreactantsconsumed.C1molH2OisproducedpermoleofH2Sconsumed.DThenumberofmolesofatomspresentafterthereactionisthesameasthenumberofmolesofatomsbeforethereaction.正确答案：CD第30题多选题(2分)Inanexperiment,7.81gAl2O3andexcessHF(g)weredissolvedin3.50Lof0.141MNaOH.If28.2gNa3AlF6wasobtained,thenwhatisthepercentyieldandtheoreticalyieldforthisexperiment?Al2O3(s)＋6NaOH(aq)＋12HF(g)2→2Na3AlF6(s)＋9H2O(l)A0.816B0.8163C34.5gD34.55g正确答案：ACChapter5第1题单选题(1分)WhatarethealuminumandsulfateionconcentrationsinAl2（SO4）3?A0.0330M，0.0495MB0.0400M，0.0500MC0.0670M,0.0900MD0.0330M，0.0490M第2题单选题(1分)Whichsolutionisthebestelectricalconductor?A0.025MRbNO3B0.50MCH3CH2OHC1.00MCH2OHCHOHCH2OHD0.050MCH3COOH第3题单选题(1分)Whichsolutionhasthehighesttotalmolarityofions?A0.008MBa(OH)2B0.010MKIC0.011MCH3COOHD0.004MAl2(SO4)3第4题单选题(1分)Vinegarisadiluteaqueoussolutionofaceticacidproducedbythebacterialfermentationofapplecider,wine,orothercarbohydratematerial.Thelegalminimumaceticacidcontentofvinegaris4%bymass.A5.00mLsampleofaparticularvinegaristitratedwith38.08mLof0.1000MNaOH.Doesthissampleexceedtheminimumlimit?(Vinegarhasadensityofabout1.01g/ml)A0.0453B0.0454C0.05D0.04第5题单选题(1分)Whichofthefollowingisthecharacteristicsofoxidizingagents?AcausesanothersubstancetobereducedBcausesanothersubstancetobeoxidizedCloseselectronsDisoxidized第6题单选题(1分)Whichofthefollowinggroupsofsubstancescanprecipitate?ABa2+andSO42-BH+andSO42-CMg2+andCl-DCa2+andCl-第7题单选题(1分)ThenumberofoxidesinSodiumis?A7B5C1D-3第8题单选题(1分)What'sthe[H+]in0.010MH2CO3?A<0.010MB>0.020MC<0.001MD>0.010M第9题单选题(1分)Whichofthefollowingsubstancesarestrongbase?ABa(OH)2BNH3.H2OCCH3NH2DC3H5O2NH2第10题单选题(1分)Ba(OH)2(aq)+MgCl2(aq),theionequationis?ABa2++Cl-=BaCl2BMg2++OH-=Mg(OH)2CMg2++2OH-=Mg(OH)2DBa2++2Cl-+Mg2++2OH-=Mg(OH)2+BaCl2第11题单选题(1分)Whichofthefollowingreactionsisadisproportionationreaction?A2H2O2=2H2O+O2BNa++Cl-=NaClCMg2++2OH-=Mg(OH)2DCaCO3=CaO+CO2第12题单选题(1分)Whichofthefollowingsubstancesarestrongacids?AHClBH2CO3CCH3COOHDHCLO第13题单选题(1分)Thecharacteristicsofreducingagents?AcausesanothersubstancetobereducedBcausesanothersubstancetobeoxidizedCgainselectronsDisreduced第14题单选题(1分)Thenumberofoxidesinnitrogenis?A5B-7C7D6第15题单选题(1分)Apieceofironwireweighing0.1568gisconvertedtoandrequires26.24mLofaKMnO4solutionforitstitration.WhatisthemolarityoftheKMnO4?A0.02150MB0.02140MC0.02100MD0.03140M第16题多选题(2分)Whichofthefollowinggroupsofsubstancescanprecipitate?ABa2+andSO42-BNa+andCl-CH+andNO3-DMg2+andOH-正确答案：AD第17题多选题(2分)Whichofthefollowingsubstancesarestrongacids?AHClBCH3COOHCH2SO4DH2CO3正确答案：AC第18题多选题(2分)Whichofthefollowingsubstancesarestrongbase?ABa(OH)2BNH3.H2OCCa(OH)2DMg(OH)2正确答案：AC第19题多选题(2分)Thenumberofoxidesinironis?A-1B2C3D-3正确答案：BC第20题多选题(2分)Thecharacteristicsofoxidizingagents?AcausesanothersubstancetobeoxidizedBcontainsanelementwhoseoxidationstatedecreasesinaredoxreactionCgainselectronsDisreduced正确答案：ABCD第21题判断题(1分)NaOH(aq)+MgCl2(aq),theionequationis2Na++2OH-+Mg2++2Cl-=2NaCl+Mg(OH)2第22题判断题(1分)(NH4)2SO4(aq)+ZnCl2(aq),theionequationisZn2++SO42-=ZnSO4第23题判断题(1分)Reactionsthatproducesaprecipitateareallexothermicreactions.第24题判断题(1分)Thereducingagentgainselectronsinthereaction.第25题判断题(1分)Theoxidizingagentcausesanothersubstancetobereduced.第26题判断题(1分)in0.0050MMgCl2,[Mg2+]=0.0050M,[Cl-]=0.0050M.第27题判断题(1分)Aceticacidcannotdisassociatescompletely.第28题判断题(1分)Mg(OH)2isstrongbase,soMg(OH)2candisassociatescompletely.第29题判断题(1分)Whenwritetheionequation,youhavetoseparatetheweakacidsandtheweakbases.第30题判断题(1分)0.1MHClismoreacidicthan0.1MH2SO4.Chapter6第1题单选题(1分)Whatisthevolume(inliters)occupiedby49.8gofHClatSTP?A28.5B30.7C33.4D34.5第2题单选题(1分)Argonisaninertgasusedinlightbulbs.Acertainlightbulbcontainingargonat1.20atmand180Cisheatedto850Catconstantvolume.Whatisthefinalpressureofargoninthelightbulb(inatm)?A1.48B2.5C3.42D0.85第3题单选题(1分)A2.10-Lvesselcontains4.65gofagasat1.00atmand27.00C.Whatisthemolarmassofthegas?A60.3g/molB23.8g/molC42.5g/molD54.5g/mol第4题单选题(1分)WhatisthevolumeofCO2producedat370Cand1.00atmwhen5.60gofglucoseareusedupinthereaction:C2H12O6(s)+6O2(g)==6CO2(g)+6H2O(l)A4.23LB3.52LC4.76LD5.80L第5题单选题(1分)Asampleofnaturalgascontains8.24molesofCH4,0.421molesofC2H6,and0.116molesofC3H8.Ifthetotalpressureofthegasesis1.37atm,whatisthepartialpressureofpropane(C3H8)?A0.0181atmB0.0256atmC0.0084atmD0.0207atm第6题单选题(1分)Inthefollowingreaction,81.2mLofO2(g)iscollectedoverwaterat230Candbarometricpressure751mmHg.WhatmassofAg2O(s)decomposed?(Thevaporpressureofwateratis21.1mmHg.)2Ag2O(s2)==4Ag(s)+O2(g)A2.03gB1.76gC1.49gD2.26g第7题单选题(1分)Whatisthepressure,inbar,exertedbyamixtureof1.0gH2and5.00gHewhenthemixtureisconfinedtoavolumeof5.0Lat200CA7.0barB8.5barC6.8barD9.2bar第8题单选题(1分)WhatvolumeofSO2(g)canbeobtainedfrom1.00LO2(g)andexcessZnS(s)?Bothgasesaremeasuredat250Cand745mmHg.2ZnS(s)+3O2(g)==2ZnO(s)+2SO2(g)A0.820LB0.747LC0.875LD0.667L第9题单选题(1分)TherearetwokindsofgasinsamevolumeVandcertainamountshavedifferentpressureP1andP2(P1>P2),whenmaxandcompressthesegasestovolumeV,whatisthefinalpressureofthissystem?AP1BP1+P2CP1-P2DP1*P2第10题单选题(1分)Whatisthedensityofoxygengas(O2)at298Kand0.987atm?A2.33g/LB4.11g/LC1.29g/LD0.57g/L第11题单选题(1分)Whatisthepressure,inkilopascals,exertedby1.00*1020moleculesofN2ina305mLflaskat1750C?A2.03kPaB3.21kPaC4.55kPaD3.90kPa第12题单选题(1分)Aglassvesselweighs40.1305gwhenclean,dry,andevacuated;itweighs138.2410gwhenfilledwithwaterat25oC(densityofwater=0.9970g\ml)and40.2959gwhenfilledwithpropylenegasat740.3mmHgand24.0oC.Whatisthemolarmassofpropylene?A48.65g/molB42.08g/molC25.71g/molD36.92g/mol第13题单选题(1分)WhichruledoesAvogadro'slawshowstous?AV∞nBV∞TCP∞1/VDP∞n第14题单选题(1分)AccordingtothecombustionandexothermicreactionC(s)+O2(g)<=>CO2(g),whichmethiodcanspeedupthereaction?AincreasethepressureBdecreasethepressureClowerthetemperatureDraisethetemperature第15题单选题(1分)WhichconditionisnotrightaccordingtoSTP?A1moleofanidealgasoccupies22.4LB1atmC22oCDdensityofairρ=1.29kg/m3第16题多选题(2分)SelectwhatBoyle'slaw,Charles'lawandAvogadro'slawtellus.AV∞nBV∞TCP∞nDP∞1/V正确答案：ABD第17题多选题(2分)WhichconditionsarenotrightaccordingtoSTP?A1moleofanidealgasoccupies22.4mLB760mmHgC22oCDdensityofairρ=1.29kg/m3正确答案：AC第18题多选题(2分)Accordingtothecombustionandexothermicreaction2H2(g)+O2(g)<=>2H2O(l)inacertainsystem,whichmethiodcanspeedupthereaction?AraisethetemperatureBincreasethepressureCaddN2intothesystemDaddC(s)intothesystem正确答案：ABC第19题多选题(2分)Asampleofnaturalgascontains8.24molesofCH4,0.421molesofC2H6,and0.116molesofC3H8.Ifthetotalpressureofthegasesis1.37atm,whatarethemolarproportionandpartialpressureofpropane(C3H8)?A0.0132B0.0087C0.0181atmD0.0215atm正确答案：AC第20题多选题(2分)Converttheunitof3.55atmintommHgandTorrA3720mmHgB2698mmHgC3720mmHgD2698mmHg正确答案：BD第21题判断题(1分)Gaseshavemuchlowerdensitiesthanliquidsandsolids第22题判断题(1分)AccordingtothereactionN2+3H2<=>2NH3,whenaddthepressureofthesystemwhienotchangeotherconditions,thebalancewillmovetoright第23题判断题(1分)Boyle’slawshowsthatatconstantnandP,VhassamechangetrendasT第24题判断题(1分)WecanusesimplelawsatSTPtomeasurethephysicalpropertyofsteam.第25题判断题(1分)Charles'lawshowsusthatV∞TatconstantnandP第26题判断题(1分)AccordingtothecombustionandexothermicreactionC(s)+O2(g)<=>CO2(g),whenlowerthetemperatureofthesystemwhilenotchangeotherconditions,thespeedwillincrease.第27题判断题(1分)Converttheunitof6atmintoTorris4560Torr第28题判断题(1分)AtSTP,1moleofanidealgasoccupies22.414L第29题判断题(1分)AtSTP,1moleofwateroccupies22.414L第30题判断题(1分)Thereisacertainamountofgasinacontainerworksatits2m2bottomwith5Nforce,thepressureofbottomis2.5kPaChapter7第1题单选题(1分)Whatvolumeof10.0MH2SO4isrequiredtoprepare4.0Lof0.50MH2SO4?A0.20LB0.40LC0.50LD1.0L第2题多选题(2分)Ifasampleofmatterisuniformthroughoutandcannotbeseparatedintoothersubstancesbyphysicalmeans,itisAacompoundBanelementCahomogeneousmixtureDaheterogeneousmixture正确答案：AB第3题单选题(1分)Calculatethequantityofheat,inkilojoules,requiredtoraisethetemperatureof9.25Lofwaterfrom22.0to30.4°C.A323.5B325.1C326.4D327.8第4题单选题(1分)Calculatethefinaltemperaturethatresultswhena12.6gsampleofwaterat22.9°Cabsorbs875JofheatA29.8B39.8C75.6D85.6第5题单选题(1分)Howmuchheatisgivenoffwhenan869gironbarcoolsfrom94°Cto5°C?（Fe:0.444J/g•°C)A34000JB3400JC-3400JD-34000J第6题单选题(1分)Asampleofnitrogengasexpandsinvolumefrom1.6Lto5.4Latconstanttemperature.Whatistheworkdoneinjoulesifthegasexpandsagainstavacuum?A1.6JB5.4JC3.8JD0J第7题单选题(1分)Asampleofnitrogengasexpandsinvolumefrom1.6Lto5.4Latconstanttemperature.Whatistheworkdoneinjoulesifthegasexpandsagainstaconstantpressureof3.7atm?A-14.1JB14.1JC1430JD-1430J第8题单选题(1分)Howmuchheatisevolvedwhen266gofwhitephosphorus(P4)burninair?P4(s)+5O2(g)→P4O10(s)DH=-3013kJ/molA6450KJB6460KJC6470KJD6480KJ第9题单选题(1分)2Na(s)+2H2O(l)→2NaOH(aq)+H2(g)DH=-367.5kJ/molAt25°C,1moleH2=24.5Lat1atmDU=?A370.0kJ/molB-370.0kJ/molC365.0kJ/molD-365.0kJ/mol第10题单选题(1分)CalculatethestandardenthalpyofformationofCS2(l)giventhat:C(graphite)+O2(g)→CO2(g)DH=-393.5kJ/molS(rhombic)+O2(g)→SO2(g)DH=-296.1kJ/molCS2(l)+3O2(g)→CO2(g)+2SO2(g)DH=-1072kJ/molA86.3kJ/molB94.8kJ/molC123.5kJ/molD243.6kJ/mol第11题单选题(1分)Howmuchheatisassociatedwiththecompletecombustionof1.00kgofsucrose,C12H22O11A16200kJB16300kJC16400kJD-16500kJ第12题单选题(1分)Agas,whileexpandingabsorbs25Jofheatanddoes243Jofwork.WhatisDUforthegas?A268JB-218JC218JD-268J第13题单选题(1分)Whichofthefollowingdefinitionsiswrong?AThespecificheat(s)ofasubstanceistheamountofheat(q)requiredtoraisethetemperatureofonegramofthesubstancebyonedegreeCelsiusBTheheatcapacity(C)ofasubstanceist