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1安徽省2023-2024学年度九年级教学质量检测（11.8）化学试卷答案试卷答案
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Whataboutyou?W:Well,myparentsandIdoeverythingtogether.It'sbetterthanonepersontryingtodotoomuch.Text8W:HiSimon.Ihopeyoulikeourschool!M:Yes,Ido!LosAngelesisgreat.I'vemadelotsoffriendsandIreallyenjoymycourses.W:Good!Metoo!Bytheway,youdidn'ttellmewhatyouarestudyinghere.M:Didn'tI?I'mdoingbusinessstudies.W:Really?That'sgreat.Areyouworkinginacompanyaftergraduation?M:Maybe.IwasborninCanada.MyparentsareinTorontoandIhopetofindajobinacompanythere.W:WhataboutyourfriendZoe?M:She'sfromSydney,Australia.Herfatherrunsahotelthereandsheisstudyinghotelmanagement.W:Wow,bothofyouhaveyourplans.M:Yes,wedo.Whataboutyou,Lucy?W:Well,I'mstudyinglaw.M:Great!SoIknowwhotocallifIneedalawyerinthefuture.W:Sure.Classesaregoingtostart.Let'sgo.Text9W:Wow!Wearesoluckytofindaparkingspacesoclosetotheshoppingmall.M:Doyourememberlasttimewehadtoparkfourblocksawayandruntothemallintherain?Thatwassocrazy.W:Don'tworry.Ialwayskeepanumbrellainthecarthesedays!M:Good.Oh,it'salreadylunchtime.Whatwouldyouliketogetforlunch?W:Thelambburgerandfries.TheyarefamousintheBurger's!Howaboutyou?M:IthinkI'llgetwhatIalwaysorder,chickensandwiches.W:Whataboutgoingshoppingafterlunch?M:Great.Well,doyouthinktherewillstillbetimetocatchthenewSpanishexhibitattheArtMuseum?W:Yes,ofcourse.Therewillbetwohoursleftforus.Andthemuseumiswithinwalkingdistance.M:Let'sgoandhavelunchfirstW:OK.Text10M:Growingcropsincontainerssaveswater.Itneedslittlefertilizer()Inaddition,thechemicalscannotrunoffintonearbywaterways.Thesameearthmixturecanbeusedforfiveorsixyears.SinceEarthBoxeswentonsalein1994,manypeoplearoundtheworldhaveusedthem.Otherpeoplehavemadetheirownvegetablegrowingboxes.Someusetwolargeplasticcontainers.Onecontainerhasholesinthebottomandsitsinsidetheotherbox.Earthmixturegoesintothetopcontainer,andwatergoesthroughatubeintothebottombox.Aplastictrashbagisthenusedtocoverthetopcontainer.Somepeoplethinkthiskindofgardeningwillbeimportanttopeopleinpoorcountrieswherehungerisaproblem.Alotoffoodcanbegrowninasmallspaceforasmallamountofmoney.ThepeoplewhomakeEarthBoxesareinterestedineducatingyoungpeople.Theyhavedevelopedaprogramaimedatteachingstudentsscienceandagriculture.Whenchildrenfirstenterelementaryschool,theylearnaboutwater,soil,light,andnutrition.Inmiddleschool,theydoexperimentsandcollectinformation.Inhighschool,6
(1)向0.1molL^-1Na2CO3溶液中滴人酚酞溶液,观察到的现象是,原因是(用离子方程式表示)。(2)用数据与化学符号表示0.1molL^-1NaHCO3溶液中微粒之间的等世关系::c(OH^-)=c(H^+)+c(H2CO3)-;c(CO3^2-)+c(HCO3^-)+c(H2CO3)=
(5)反应N或反应V后,过滤得到CuCl1沉淀,用冰水洗涤沉淀23次,然后在真空干燥机内于70^C干燥2小时,冷却,密封包装即得产品。在真空干燥机内干燥的目的是。
