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1陕西省2023-2024学年度七年级第一学期第一次月考（10月）C版化学试卷答案

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dLieWithoutPlasticisanonlinestore,runbyCanndiancoupleChantalPlamondontimeooNow,thecouplehavewrittenabook,titledLifewithourPlastic:formPracticalTheep-by-StepGuidetoAvoidingPlastictoKeepYourFamilyandthePlanetlealthyteandhatwen论"owTheawayfromplasticinourivimpoAsagreenlifestylewriter,Ihavedonealotofreadingaboutplasticovertheyears,buuntilpickingupthisbook,Ihadn'trealizedhowmuchofthepublicdiscussionaboutplasticrathertoseity裤径wsaoutwaste,themostimportantlessonformecamefromlearningwhatplasticdoehumanbodieswhenwecomeintocontactwithiteveryday,alldayandforever.Inthebook,thecouplealsoexplaintheplastiemakingstepshowplastiecantakesooelhowreusingtakesplace.Besides,theyofedeteebocuttingdownonplasticinourlivesasmuchaspossible.hereaderstobepartotheplastmovmenbysimilarly-mindedpeopleandgroupsaroundtheworld.Therearelistsofreandorkingdorigagainsdplasticpollutisneencouragedtomakebigchangestoyourteoudon'thavetodoitallatonce.Startwithsmallstepsandworkmeaningfulgoals.elookingatIi

A.Hopeful.B.Worried.C.Confused.D.Surprised.Whatdidtheauthorrealizeafterreadingthebookwrittenbythecouple?APepayssplastitoicyB.Peopleusetoomanyplasticproducts.C.Plasticlitterisfoundeverywhere.D.It'shardtoreuseplastics.hatdotheoopletodointhefinalpartoftheirbook?A.Stopusingsingle-useplastics.B.Joinhandstosolveplasticproblems.C.Domorestudiesaboutplasticpollution.D.Recommendplastic-freeproductsonsocialmedia.1.Whereisthetextprobablytakenfrom?A.Ashortstory.B.Aresearchreport.C.Abookreview.D.Aproductintroduction.DWhileyou'restayinginanelevator()doyoueverwonderwhocameupwiththeaofinventingit?ElevatorsexistedasfarbackasinancientRome.Thoseearly"elevators"resimpleplatforms,typicallyusedtoperformtaskssuchasraisingupwaterforcropsoringheavybuildingmaterials.Theywerepoweredbyanimals,peopleorevenwaterwheels.ThefirstmodernpassengerelevatorwasbuiltforKingLouisXVin1743.FixedonthesideoftheKing'spalace,theelevatorwentfromthefirsttothesecondfloorthroughtheofropesandpulleys().Bythe1850s,elevatorswerepoweredbywaterpressureormbuttheystillweren'tverycommon.Atthattime,elevatorsthatoperatedonacablemrideredundependablerdangerousbecauseiftheropesbroke,thedthegoodscoudbedamaged.Morempy,passengerswereefall.【23模拟调研·英语（二）第5页（共8页）LLY】

7.铋合金具有凝固时不收缩的特性,用于铸造印刷铅字和高精度铸型。利用辉铋矿制备铋的工艺流程如图。已知该辉铋矿的主要成分为Bi2S3,还含有少量Bi2O3、Bi、SiO2,下列说法错误的是Cl2辉铋矿一A.“氧化没出”时,Bi被氧化的化学方程式为Bi+3FeCl3BiCl3+3FeCl2B.浸渣的主要成分为S和SiO2,太阳能电池板的主要成分为SiO2C.洗涤没渣后的滤液中存在Bi^3+,,为减少Bi损耗可并入没液D.置换液中通人Cl2后主要反应的离子方程式为2Fe^2++Cl22Fe^3++2Cl^-

(4)测定所得氨基钠的纯度:①快速称取0.10g所得产品于图3装置(夹持装置略)的锥形瓶中,将锥形瓶放入盛有冰盐水的水槽中,冰盐水的作用是。向锥形瓶中缓慢加人约50.0mL0.1mol/L稀盐酸,发生反应:NaNH2+HClNaCl+NH3,NH3+HClNH4Cl。,氨基钠完全反应后,将两部分溶液合并于锥形瓶中。

1陕西省2023-2024学年度七年级第一学期第一次月考（10月）C版化学