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如图是元素周期表的一部分：（1）从表中查出硅元素的相对原子质量为 ．（2）表中不同种元素最本质的区别是 ．（3）科学家已人工合成了第116号元素，则此元素的核电荷数为 ．
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元素周期表的形式多种多样如下图是扇形元素周期表的一部分1～36号元素对比中学常见元素周期表思考扇形元
①、②、④、⑦对应的原子半径依次增大
氢化物的沸点：⑤>⑧
元素③处于常见周期表第3周期ⅥA.族
元素⑥和⑨的氧化物的水化物分别为Mg(OH)
2
和HClO
4
元素周期表是学习化学的重要工具如图是元素周期表中的一部分请回答下列问题1表中①所示元素的名称是___
元素周期表是学习和研究化学的重要工具下图是元素周期表的一部分1查出碳的相对原子质量为________
元素周期表是学习化学的重要依据下表是元素周期表的一部分按表格提供的信息判断错误的是
碳、氮、氧三种元素都属于非金属元素
不同种元素之间最本质的区别是最外层电子数不同
氧原子的核内中子数是8
氮原子的相对原子质量是14.01
元素周期表是化学学习和研究的工具下图是元素周期表的一部分1从表中查出硅Si元素的相对原子质量为___
元素周期表是学习和研究化学的重要工具下图是元素周期表的一部分1查出碳的相对原子质量为________
元素周期表是学习和研究化学的重要工具下图是元素周期表的一部分①查出碳的相对原子质量为原子序数为17的
元素周期表是化学学习和研究的重要工具.如图是元素周期表的一部分.1从表中查出硅Si元素的相对原子质量
元素周期表是学习化学的重要工具如图是元素周期表中的一部分请回答下列问题1表中①所示元素的名称是___
元素周期表是学习和研究化学的重要工具下图是元素周期表的一部分①查出碳的相对原子质量为原子序数为17的
元素周期表的形式多种多样如图是扇形元素周期表的一部分对比中学常见元素周期表思考扇形元素周期表的填充规
②、⑧、⑨对应简单离子半径依次减小
该表中标注的元素全部是主族元素
元素⑥和⑦的原子序数相差11
④的最高价氧化物对应的水化物能与其氢化物反应，生成离子化合物
如图是元素周期表中的一部分.在元素周期表中同一周期横行中的元素除0族最右纵行元素外从左到右原子序数依
元素周期表是学习化学的重要工具如图是元素周期表中的一部分请回答下列问题1表中①所示元素的名称是___
元素周期表是化学学习和研究的重要工具下图是元素周期表的一部分1从表中查出硅Si元素的相对原子质量为_
右图1是元素周期表中的一部分图2是硒原子的结构示意图据图回答问题1图2中m的值为_______n的值
如图1是元素周期表中的一部分图2是硒原子的结构示意图.据图回答问题1硒的相对原子质量是2硒元素位于元
元素周期表是化学学习和研究的工具下图是元素周期表的一部分1从表中查出硅Si元素的相对原子质量为___
元素周期表是化学学习和研究的工具下图是元素周期表的一部分请认真阅读后回答下列问题1从表中查出Si元素
元素周期表是学习化学的重要工具从中可以获取许多信息.如图是元素周期表的一部分从中可了解到硒元素的原子
元素周期表是学习和研究化学的重要工具下图是元素周期表的一部分1查出碳的相对原子质量为原子序数为17的
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下列有关细胞结构和成分的叙述错误的是
如图是城市污水处理的流程图 阅读流程图回答下列问题 1在污水处理流程中一级处理过程中使用的处理方法发生的是变化填“物理”或“化学”该过程中的处理方法主要是除去物质 2在消毒清水池中常用二氧化氯这种物质对水进行消毒二氧化氯的化学式是其中氯元素的化合价是价 3硬水在日常生活工业生产中常带来不便长期饮用硬水会增加人体过滤系统结石的得病率．生活中常用的方法将硬水进行软化而区别硬水和软水常使用． 4该污水处理流程中活性炭的作用是． 5高铁酸钠Na2FeO4是水处理过程中使用的一种新型净水剂制取高铁酸钠的化学方程式如下 2FeNO33+16NaOH+3Cl2＝6NaNO3+2Na2FeO4+6x+8H2O则X的化学式是． 6节约用水是每个公民的义务下列用水方式应该提倡的有填字母序号 A．洗澡擦沐浴露时暂时关闭水龙头 B．不间断地边流水边洗衣 C．用淘米水和洗菜水浇花或冲厕所 D．用喷灌滴灌的方法浇灌农田和园林
小红对暗紫色粉末A进行实验实验过程如图所示．请回答下列问题 1写出下列物质的化学符号AEFG． 2写出A受热分解的化学符号表达式 3黑色固体G在无色气体B中得到H的化学符号表达式检验气体H的方法是．
DirectionsCompletethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed. Consideringhowmuchtimepeoplespendinofficesitisimportantthatworkbewelldesigned.Well﹣designedofficespaceshelpcreateacooperation'simage.Theymotivateworkersandtheymakeanimpressiononpeoplewhovisitandmightbepotentialor41customer.Theymakebusinessesworkbetterandtheyareapartofthecorporateculturewelivein. Aswemoveawayfromanindustrial﹣basedeconomytoaknowledge﹣basedoneofficedesignershavecomeupwith42tothetraditionalworkenvironmentsofthepast.Thedesignindustryhasmovedawayfromafixedofficesetupandcreatedmoreflexiblestrategicmanagementenvironments.These43solutionsaretomeanttosupportbetterorganizationalperformances. Asemployeehierarchies等级制度haveflattenedordecreasedofficedesigners‘responsetothischangehasbeentomoveopen﹣plainareastomoredesirablelocationswithintheofficeandcreatefewerformalprivateoffices.Theneedforincreasedflexibilityhasalsobeen44bychangesinworkstationdesign.Officesandworkspacesoftenarenot45toagivenpersononapermanentbasisbecauseofchangestomethodofworkingnewdesignsallowforexpansionormovementofdesksstorageandequipmentwithintheworkstation.Anotherimportantdesigngoaliscommunicationwhichdesignershaveimprovedbyloweringthewallsthat46workstations.Designershavealsocreatedinformalgatheringplacesandupgradedemployees'47toheavilytraffickedareassuchascopyandcoffeerooms. Corporateandinstitutionalofficedesignersoftenstruggletoresolveanumberofcompetingandoften48demandsincludingbudgetarylimitsemployeehierarchiesandtechnologicalinnovationespeciallyinrelationtocomputerization.Thesedemandsmustalsobebalancedwiththeneedtocreateinteriors内饰thatinsomewayenhanceestablishorpromoteacompany‘simageandwillenableemployeesto49attheirbest.Allthese50ofofficedesignarerelated.Themostsuccessfulofficedesignsarelikeagoodmarriage﹣﹣thewell﹣designedofficeandtheemployeesthatoccupyitareseeminglymadeforeachother. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50.
Giftfromastranger Mylocalsupermarketisalwaysbusy.ThefirstparkingspaceIfoundwasconvenientbutI'dnoticedawomaninabluecarcirclingforawhile.25IwasinagoodmoodIletherhaveit.OntheedgeofthecarparkIbackedintothenextavailablespot﹣itwasatightfit. PrettysoonI'dmademywaythroughthesupermarketandwasbackinthefreshair.FeelinggoodI26emptymypursechangeintothehandsofahomelessmanandhelpedastrugglingwomanreversepark. JustasIapproachedmycar1sawthewomanI'dlethavemycarspaceearlier.Shewasgivingme27oddlook﹣halfpuzzledhalfintent热切的.Ismiledandwishedherapleasantday.AsIsqueezedbackintomycarIspottedthesamelady28lookinatme.Helloshesaidhesitantly.This29soundcrazybutIwasonmywaytodropsomeofmymother'sthingsoffatthecharitybins.Youarejustsomuch30her.YouhelpedthosepeopleInoticedandyouseemedsohappy.Shelookedatmemeaningfullyandpassedaboxinthroughthewindow.Ithinkshewouldlikeyoutohaveit.31shockItookitfromherautomatically.Shesmiledandwalkedaway. AfterapauseIopenedthebox.Insidewasabeautifulgoldnecklacewithalargegreypearl.Itwas32nicegiftI'deverreceivedanditwasfromacompletestranger.Thenecklacewasaroundmyneckawarmreminderofhumankindness. 25. 26. 27. 28. 29. 30. 31. 32.
56.AccordingtotheCodevisitorsshouldact. A.withcareandrespect B.withreliefandpleasure C.withcautionandcalmness D.withattentionandobservation 57.WhatareyouencouragedtodowhentravellinginNewZealand? A.Takeyourowncampingfacilities. B.Buryglassfarawayfromrivers. C.Followthetrackforthesakeofplants. D.Observesignstoapproachnestingbirds.
下列有关过滤和蒸馏的说法不正确的是
OneoftheexecutivesgatheredattheAspenInstituteforaday﹣longleadershipworkshopusingtheworksofShakespearewasdiscussingtheroleofBrutusinthedeathofJuliusCaesar.Brutuswasnotanhonorablemanhesaid.Hewasatraitor叛徒.Andhemurderedsomeoneincoldblood.TheagreementwasthatBrutushadactedwithcrueltywhenotheroptionswereavailabletohim.Hemadeabaddecisiontheysaid﹣atleastasitwaspresentedbyShakespeare﹣totaketheleadinmurderingJuliusCaesar.AndthoughoneoftheexecutivesacknowledgedthatBrutushadthegoodoftherepublicinmindCaesarwasneverthelesshissuperior.Youhavetoendeavortheexecutivessaidourpolicyistoobeythechainofcommand. DuringthelastfewyearsbusinessexecutivesandbookwriterslookingforanewwaytoadvisecorporateAmericahavebeenexploitingShakespeare'swisdomforprofitableends.NonemoresothanhusbandandwifeteamKennethandCarolAdelmanwell﹣knownadviserstotheWhiteHousewhostartedupatrainingcompanycalledMoversandShakespeares.TheyareamateurShakespearescholarsandShakespeareloversandtheyhavecombinedtheirpassionandtheirhighlevelcontactsintoamanagementtrainingbusiness.Theyconductbetween30and40workshopsannuallyfocusingonhalfadozendifferentplaysmostlyforcorporationsbutalsoforgovernmentagencies. Theworkshopsalltakethesameformfocusingonasingleplayasakindofcasestudyandusingindividualscenesasspecificlessons.InJuliusCaesarslyprovocation狡诈的挑唆ofBrutustotakeuparmsagainstthewhatwasabasisforadiscussionofmethodsofteambuildingandgrassrootsorganism. AlthoughneitheroftheAdelmansisacademicallytrainedinliteraturetheprogrammescontainplentyofShakespearetraditionandbackground.TheirworkshoponHenryVforexampleincludesahelpfulexplanationofHenry'swinningstrategyattheBattleofAgincourt.Buttheydocometothetextwithafewbiases偏向theirreadingofHenryVminimizeshismisuseofpower.Insteadtheyemphasizethestoryoftheyouthwhoseizesopportunityandbecomesamasterfulleader.AndattheworkshoponCaesarMr.AdelmanshadlittlegoodtosayaboutBrutussayingthenoblestRomanofthemallcouldn'tmakehismindupaboutthings. ManyoftheparticipantspointedtoveryspecificelementsintheplaythattheyfeltrelatedCaesar'spridewhichledtohismurderandBrutus'smistakesinleadingtheafterthemurdertheysaidraisevitalquestionsforanyoneservingasabusinesswhenandhowdoyouresisttheboss? 73.Accordingtoparagraph1whatdidalltheexecutivesthinkofBrutus?. A.Cruel. B.Superior. C.Honourable. D.Rude 74.AccordingtothepassagetheAdelmanssetupMoversandShakespearesto. A.helpexecutivestounderstandShakespeare'splaysbetter B.giveadviceonleadershipbyanalyzingShakespeare'splays C.providecasestudiesofShakespeare'splaysinliteratureworkshops D.guidegovernmentagenciestofollowthecharactersinShakespeare'splays. 75.WhydotheAdelmansconductaworkshoponHenryV? A.Tohighlighttheimportanceofcatchingopportunities. B.Toencouragemasterfulleaderstoplanstrategiestowin. C.Toillustratetheharmofprejudicesinmanagement. D.Towarnexecutivesagainstpowermisuse. 76.Itcanbeinferredfromthepassagethat. A.theAdelmans'programmeprovesbiasedastherolesofcharactersaremaximized. B.executivesfeelboredwithtoomanyspecificelementsofShakespeare'splays. C.theAdelmanswillmakemoreprofitsiftheyareprofessionalscholars. D.Shakespearehasplayedanimportantroleinthemanagementfield. 77.Thebesttitleforthepassageis. A.Shakespeare'splaysExecutivesreconsidercorporateculture B.Shakespeare'splaysAnessentialkeytobusinesssuccess C.Shakespeare'splaysalessonforbusinessmotivation D.Shakespeare'splaysDramatictrainingbringsdramaticresults.
某地开展以甜高粱种植为核心的生态农业建设．甜高粱植株高大且田间湿度大可以在田间培养食用菌．甜高粱叶片糖和蛋白质的含量高是鱼和牛的优良饲料．甜高粱茎秆可用于发酵制酒酒糟可喂牛牛粪又可用于生产沼气沼气用来在温室中点灯燃烧沼渣又可肥田．请回答 1鱼和牛的种间关系是． 2若生产者所固定的太阳能总量为m千焦理论上该生态系统中牛所在营养级获得的能量最多为． 3沼气可以提高温室作物的产量原因是写出一点即可． 4该生态系统能供养的人数较多从能量流动的角度分析原因是．
研究人员分别测试生长素类似物甲和乙对莴苣幼根生长的影响部分结果如表．下列分析正确的是
近日中国在四川某地发现了一个超大规模的锂矿储量高达52万吨被称之为“中国锂谷”．锂矿是重要的国家战略资源有着21世纪改变世界格局的“白色石油”和“绿色能源金属”之称．如图是锂原子结构示意图和锂元素在元素周期表中的相关信息．下列说法不正确的是
下列叙述完全符合质量守恒定律的是
下列物质由分子构成的是
某科学兴趣小组的同学设计了如下四个实验装置天平略来验证质量守恒定律． 1上述的四个实验装置中装置能直接用于验证质量守恒定律 2①装置A中发生反应的化学符号表达式实验过程中气球的变化是． ②点燃红磷的实验过程中固体质量变化如图1所示参加反应的氧气质量为g． 3CD反应的微观示意图如图2所示实际生成的物质分子数目之比为．
下列古代生产工艺或文明中主要利用化学变化的是
某群落最初主要有针茅早熟禾等多年生草本植物．放牧和烧荒后逐渐演替为以草本和灌木为优势种的群落．其中灌木分泌的樟脑聚集在土壤中会抑制周围1m﹣2m内草本植物生长而形成裸地．下列分析正确的是
Supposeyoubecomealeaderinanorganization.It'sverylikelythatyou'llwanttohavevolunteerstohelpwiththeorganization'sactivities.Todosoitshouldhelptounderstandwhypeopleundertakevolunteerworkandwhatkeepstheirinterestinthework. Let'sbeginwiththequestionofwhypeoplevolunteer.Researchershaveidentifiedseveralfactorsthatmotivatepeopletogetinvolved.Forexamplepeoplevolunteertoexpresspersonalvaluesrelatedtounselfishnesstoexpandtheirrangeofexperiencesandtostrengthensocialrelationships.Ifvolunteerpositionsdonotmeettheseneedspeoplemaynotwishtoparticipate.Toselectvolunteersyoumayneedtounderstandthemotivationsofthepeopleyouwishtoattract. Peoplealsovolunteerbecausetheyarerequiredtodoso.Toincreaselevelsofcommunityservicesomeschoolshavelaunchedcompulsoryvolunteerprograms.Unfortunatelytheseprogramscanshiftpeople'swishofparticipationfromaninternalfactore.g.Ivolunteerbecauseit'simportanttometoanexternalfactore.g.IvolunteerbecauseI'mrequiredtodoso.Whenthathappenspeoplebecomelesslikelytovolunteerinthefuture.Peoplemustbesensitivetothispossibilitywhentheymakevolunteeractivitiesamust. Oncepeoplebegintovolunteerwhatleadsthemtoremainintheirpositionsovertime?Toanswerthisquestionresearchershaveconductedfollow﹣upstudiesinwhichtheytrackvolunteersovertime.Forinstanceonestudyfollowed238volunteersinFloridaoverayear.Oneofthemostimportantfactorsthatinfluencedtheirsatisfactionasvolunteerswastheamountofsufferingtheyexperiencedintheirvolunteerpositions.Althoughthisresultmaynotsurpriseyouitleadstoimportantpracticaladvice.Theresearchersnotethatattentionshouldbegiventotrainingmethodsthatwouldpreparevolunteersfortroublesomesituationsorprovidethemwithstrategiesforcopingwiththeproblemtheydoexperience. Anotherstudyof302volunteersathospitalsinChicagofocusedonindividualdifferencesinthedegreetowhichpeopleviewvolunteerasanimportantsocialrole.Itwasassumedthatthosepeopleforwhomtheroleofvolunteerwasmostpartoftheirpersonalidentitywouldalsobemostlikelytocontinuevolunteerwork.ParticipantsindicatedthedegreetowhichthesocialrolematteredbyrespondingtostatementssuchasVolunteeringinHospitalisanimportantpartofwhoIam.Consistentwiththeresearchers'expectationstheyfoundapositivecorrelation正相关betweenthestrengthofroleidentityandthelengthoftimepeoplecontinuedtovolunteer.TheseresultsonceagainleadtoconcreteadviceOnceanindividualbeginsvolunteeringcontinuedeffortsmightfocusondevelopingavolunteerroleidentity…ItemslikeT﹣shirtsthatallowvolunteerstoberecognizedpubliclyfortheircontributionscanhelpstrengthenroleidentity. 61.Peoplevolunteermainlyoutof. A.academicrequirements B.socialexpectations C.financialrewards D.internalneeds 62.WhatcanwelearnfromtheFloridastudy? A.Follow﹣upstudiesshouldlastforoneyear. B.Volunteersshouldgetmentallyprepared. C.Strategytrainingisamustinresearch. D.Volunteersareprovidedwithconcreteadvice. 63.Whatismostlikelytomotivatevolunteerstocontinuetheirwork? A.Individualdifferencesinroleidentity. B.PubliclyidentifiablevolunteerT﹣shirts. C.Roleidentityasavolunteer. D.Practicaladvicefromresearchers. 64.Whatisthebesttitleofthepassage? A.HowtoGetPeopletoVolunteer B.HowtoStudyVolunteerBehaviors C.HowtoKeepVolunteers'Interest D.HowtoOrganizeVolunteerActivities.
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如图是用红磷燃烧法测定空气里氧气含量的装置图有关此实验的结论与分析正确的是
科研人员为探究植物A生长的最佳光照强度设计了下面的实验．首先取若干生长状况相同的植物A的植株平均分为5组分别放在密闭的玻璃容器中．实验开始时测定CO2的浓度12小时后再次测定CO2的浓度．实验结果如下表．请分析回答下列问题 1第1组实验在12小时后CO2浓度变化的原因是由于． 2本实验中无关变量有答出两点即可． 3从根据表中实验数据能/不能确定80%普通阳光是植物A生长的最佳光照强度理由是．
下列物质中属于纯净物的是
Peopleselectnewsinexpectationofareward.Thisrewardmaybeeitheroftwokinds.OneisrelatedtowhatFreudcallsthePleasurePrincipletheothertowhathecallstheRealityPrinciple.Forwantofbetternamesweshallcallthesetwoclassesimmediaterewardanddelayedreward.Ingeneralthekindofnewswhichmaybeexpectedtogiveimmediaterewardarenewsofcrimeandcorruptionaccidentsanddisasterssportssocialeventsandhumaninterest.Delayedrewardmaybeexpectedfromnewsofpublicaffairseconomicmatterssocialproblemsscienceeducationandhealth. Newsofthefirstkindpaysitsrewardsatonce.Areadercanenjoyanindirectexperiencewithoutanyofthedangersorstressesinvolved.Hecantremblewildlyatanaxe﹣murdershakehisheadsympatheticallyandsafelyatahurricaneidentifyhimselfwiththewinningteamlaughunderstandinglyatawarmlittlestoryofchildrenordogs.Newsofthesecondkindhoweverpaysitsrewardslater.Itsometimesrequiresthereadertotolerateunpleasantnessorannoyance﹣asforexamplewhenhereadsofthethreateningforeignsituationthemountingnationaldebtrisingtaxesfallingmarketscarcehousingandcancer.Ithasakindofthreatvalue.Itisreadsothatthereadermaybeinformedandprepared.Whenareaderselectsdelayedrewardnewshepullshimselfintotheworldofsurroundingrealitytowhichhecanadapthimselfonlybyhardwork.Whenheselectsnewsoftheotherkindheusuallywithdrawsfromtheworldofthreateningrealitytowardthedreamworld. Foranyindividualofcoursetheboundariesofthesetwoclassesarenotstable.Forexampleasociologistmayreadnewsofcrimeasasocialproblemratherthanforitsimmediatereward.Acoachmayreadasportsstoryforitsthreatvaluehemayhavetoplaythatteamnextweek.Apoliticianmayreadanaccountofhislatestsuccessfulpublicmeetingnotforitsdelayedrewardbutverymuchashiswifereadsanaccountofaparty.Inanygivenstoryofcorruptionordisasterathoughtfulreadermayreceivenotonlytheimmediaterewardofindirectexperiencebutalsothedelayedrewardofinformationandpreparedness.Thereforewhilethedivisionofcategoriesholdsingeneralanindividual'stendencymaytransferanystoryfromonekindofreadingtoanotherordividetheexperiencebetweenthetwokindsofreward. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80.
下列化学用语正确的是
美食是人们造访上海的乐趣之一.visit.
按要求填空 1用化学符号填空 2个硫酸根氖气地壳中含量最多的金属元素氧化铁中铁元素化合价． 2写出下列微粒符号中“2”的含义 2O3表示NO2表示Zn2+表示O． 3下列物质①臭氧②蒸馏水③纯净的空气④铜片⑤高锰酸钾⑥硫在氧气中燃烧的生成物⑦澄清石灰水⑧河水⑨碳酸钠 属于混合物的有填序号下同属于单质的有属于氧化物的有．
“尾气催化转换器”将汽车尾气中的有毒气体转变为无毒气体．其微观过程如图所示其中不同的圆球代表不同的原子．下列说法中正确的是
申请材料需要精心准备这样你心仪的学校才会对你的能力有全面准确的了解.inorderthat.
某研究小组设计的酿制果醋的基本流程是如下所示请回答 苹果苹果块苹果泥苹果汁苹果酒苹果醋 1过程①操作是先切块后清洗/先清洗后切块过程④需要加入无菌水对果酒进行稀释原因是． 2过程③前需要加入白砂糖主要是为酵母菌提供白砂糖的添加量对酒精生成量的影响如图所示因此白砂糖的添加量为最为合理． 3为鉴定果醋是否酿制成功除了尝嗅之外还可以通过观察和检测比较作进一步的鉴定． 4为进一步纯化制作果醋的微生物可以用稀释涂布平板法和平板划线法这两种纯化方法的共同点是答出两点．
在你生命中如果有一个人你需要对他说对不起那么就去向他道歉吧.apologyIfthereissomeoneinyourlifetowhomyouneedtosaysorrygoaheadandmakean apology..
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