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有关X气体的收集及其尾气处理的装置如图所示，下列选项合理的是（ ）
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高三下学期化学《》真题及答案
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实验室中某些气体的制取收集尾气处理或性质实验装置如图所示用此装置和下表中提供的物质完成相关实验合理
A
B
C
D
实验室中某些气体的制取收集及尾气处理装置如图所示夹持和净化装置省略．仅用以下实验装置和表中提供的物
A
B
C
D
如图所示装置不可倒置下列叙述正确的是
若用排空气法往装置内收集H
2
时，气体应从A.端通入
若用排空气法往装置内收集O
2
时，气体从B.端通入
若用排空气法往装置内收集CO
2
时，气体应从A.端通入
若用排水法往装置内收集O
2
时，气体应从A.端通入
2015年·龙岩非一级达标校模拟实验室中某些气体的制取收集及尾气处理装置如图所示省略夹持和净化装置
A
B
C
D
通常状况下CO是一种无色无味有毒的气体难溶于水与酸碱盐溶液均不反应酒精喷灯可用作高温热源正确连接如图
2015年·海南文昌中学模拟二实验室中某些气体的制取收集及尾气处理装置如图所示省略夹持和净化装置．
A
B
C
D
实验室中某些气体的制取收集及尾气处理装置如图所示省略夹持和净化装置仅用此装置和表中提供的物质完成相关
A.
B.
C.
D.
实验室制取某些气体所需的装置如图所示请回答下列问题1实验仪器①的名称是2实验室制取二氧化碳气体应选择
实验室中某些气体的制取收集尾气处理或性质实验装置如图所示用此装置和下表中提供的物质完成相关实验合理
A
B
C
D
2017年·通化模拟实验室中某些气体的制取收集及尾气处理装置如图所示省略夹持和净化装置．仅用此装置和
A
B
C
D
右图是实验室常用的气体制取装置之一下列有关叙述合理的是
该装置既可以用于制取氧气，也可用于制备二氧化碳
为了防止生成的气体逸出，导管口一有气泡产生即刻收集
该装置的优点是“能控制反应的发生和停止”
当气泡从瓶口逸出时，表明气体已经收集满
实验室中某些气体的制取收集尾气处理或性质实验装置如图所示用此装置和下表中提供的物质完成相关实验合理
A
B
C
D
2015年·北京清华附中模拟3月实验室中某些气体的制取收集及尾气处理装置如图所示省略夹持和净化装置
A
B
C
D
根据如图1的实验装置图回答装置用序号表示1实验室制O2应选用的发生装置为实验室制取CO2应选用的发生
实验室中某些气体的制取收集及尾气处理装置如图所示省略夹持和净化装置仅用此装置和表中提供的物质完成相关
A.
B
C
D.
实验室常用如图所示的装置注意集气瓶不得倒置收集气体若被收集的气体从a管进入集气瓶下列气体物质中不适宜
O
2
CO
2
SO
2
CH
4
某兴趣小组探究SO2气体还原Fe3+他们使用的药品和装置如图所示下列说法合理的是
B.中蓝色溶液褪色可以证明还原性： I-＞SO2
实验完成后，检脸A.中是否含有Fe2+，可用酸性KMnO4溶液
实验完成后，向A.中加入用稀盐酸酸化的BaCl2溶液，产生白色沉淀
装置C.的作用是吸收SO2尾气，发生的反应是氧化还原反应
实验室中某些气体的制取收集及尾气处理装置如图所示省略夹持和净化装置．仅用此装置和表中提供的物质完成
A
B
C
D
如图所示的是收集气体的装置现若用它收集气体X当气体X.从a口进入时瓶内空气从b口排出则气体X.可能为
①②③均可
只有①
只有③
只有②和③
小亮同学设计如图所示装置来制取并收集气体你认为合理的是
用KMnO
4
粉末制取O
2
用KClO
3
和MnO
2
的混合物制取O
2
用Zn和稀硫酸制取H
2
用石灰石和稀盐酸制取CO
2
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helpputmakefamilyheavy BencouldhearstrongwindsoutsidehishomeinAlabama.Blackcloudsweremakingtheskyverydark.Withnolightoutsideitfeltlikemidnight.ThenewsonTVreportedthata1rainstormwasinthearea. Everyoneintheneighborhoodwasbusy.Ben'sdadwas2piecesofwoodoverthewindowswhilehismomwasmakingsuretheflashlightsandradiowereworking.Shealsoputsomecandlesandmatchesonthetable. Benwashelpinghismom3dinnerwhentherainbegantobeatheavilyagainstthewindows.Afterdinnertheytriedtoplayacardgamebutitwashardtohavefunwithaseriousstormhappeningoutside. Bencouldnotsleepatfirst.Hefinallyfellasleepwhenthewindwasdyingdownataround300a.m.Whenhewokeupthesunwasrising.Hewentoutsidewithhis4andfoundtheneighborhoodinamess.Fallentreesbrokenwindowsandrubbishwereeverywhere.Theyjoinedtheneighborsto5cleanuptheneighborhoodtogether.Althoughthestormbrokemanythingsapartitbroughtfamiliesandneighborsclosertogether. 1. 2. 3. 4. 5.
他刚才在图书馆浏览了今天的报纸. Hetoday'snewspaperinthelibraryjustnow.
10分ThedaywasThankfulThursday.Itisaweekly1thatmytwolittlegirlsandIbeganyearsago.Wegooutintheworldanddocharitywork.LastThursdayweweregoingtobuy2forthebeggarsinthestreet. Iordered15lunchesfromMcdonald'sand3todeliverthem.Welovewhatwesawinthestreetaan4andhappypersonholdinguptheirlunchbag. Thenwenoticedanoldwomanaskingforchange.Wehandedherourfinallunch.Aswegotintothecarshestartedto5tous.Noonehaseverdone6likethisformebeforeshesaidwithasmile.wellI'mgladthatwewerethefirst.Ireplied.So7willeatthelunch?Iasked. ShejustlookedatmewithherhugetiredbrowneyesandsaidOhhoneyI'mnotgoingtoeatthislunchmyself.YouseeIhavealittlegirlofmyown.Iusuallycan't8tobuyherthefoodsheenjoys.Buttonightshewillbehappy. Idon'tknowifthekidsnoticedthetearsinmyeyes.Ihavequestionedmanytimewhetherouractsofkindnessweretoo9toreallybringaboutchange.Yetinthatmoment.I10thetruthofMotherTeresa'swordsWecannotdogreatthinsonlysmallthingswithgreatlove. 1.Acelebration Bbehavior Cduty Dtradition 2.Abreakfast Blunch Cbrunch Dsupper 3.Asetout Bsetaside Csetabout Dsetup 4.Aconfident Beasygoing Csurprised Doutgoing 5.Achat Bspeak Ctell Dshout 6.Aeverything Bsomething Cnothing Danything 7.Ahow Bwhere Cwho Dwhether 8.Await Bhelp Cafford Dpromise 9.Aweak Bsmall Chuge Dmany 10.Arecognized Brefused Creceived Drecycled
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﹣Whatwereyoudoingat400pmyesterdayafternoon? ﹣Itheclassroom. A.cleaned B.willclean C.wascleaning D.clean
6分ThewordformilkinGermanisMilch.InFrenchitislait.Usuallyyoudon'tfindthesamewordsineverylanguage.ButthereisanexceptionforthewordOK. ItisthemostfrequentlyspokenexpressionintheworldOKwasfirstintroducedtotheworldintheBostonMorningPostonMar.231839.Itreado.k.allkorrectwhichmeansallcorrect.AlthoughitwasonlyajokeatthattimelaterpeoplebeganmarkingOKondocumentsandusingOKonthetelegramtosaythatallwaswell.Todaypeoplecrosscountriesusethisexpressioneveryday.Howabout2o'clock?OK?OKOKthen.ThewordOKiseasytosayandwriteandclearenoughtobeunderstood.Besidesitoffersneutrality中立thatotherwordsdon'thave.Ifyousaysomethingisgreatsomepeoplemaysayitisn't.ButwithOKeveryonegenerallyagrees. Arethereanyotherwordsthatcancrosscountriesandcultures? Huhisanothercommonlyusedword.Researchersfoundthathuhmeanssurpriseordisbeliefin10differentlanguages.Sometimespeopleneedawordtoexpressmanymeaningsatonce.Forexamplesometimesthereisaproblemofunderstandingoryouwanttoasksomebodyforareaction.Sayinghuhisshortandeasytosayandhear.Alsoyoudon'tneedtolearnthiswordjustlikeyoudon'tneedtolearntocryorlaugh.Huhjustcomesoutnaturally. Otherwidelyusedwordsincludemamawhichisconsideredtobetheeasiestwordforbabiestopronounce.Don'tforgetgameover.Itisnotonlyusedbysportsfansbutalsotodescribetheendofaneventinreallife. 1.WhichoffollowingisNottrueaboutOK?. A.Itwasajokeforallcorrectatfirst. B.Itwasfirstusedonthetelegraph C.Itiseasytobeunderstand D.It'snotastrongwordtoshowyouopinion 2.HuhiswidelyusedNOTbecause A.itcanexpressmanymeaningsatonce B.it'seasytosayandhear C.youdon'tneedtolearnit D.it'stheeasiestworldforustopronounce 3.What'sprobablythebesttitleforthestory?. A.Wordswithoutborders B.Themostpopularwords C.Wordsweoftenuse D.Mostwidelyusedwords
Whynotgototheparkwithyourfriendsonweekends?改同义句 Whygototheparkwithyourfriendsonweekends.
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