首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
物质的结构、性质、用途及保存方法之间有密切的联系，据此回答下列问题．氧气和二氧化碳的化学性质不同，是因为它们的 不同．
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
物质的性质与用途之间有密切的联系据此回答下列问题． 1氮气的化学性质不活泼在焊接金属时常用作
物质的性质与用途之间有密切的联系据此回答下列问题．酒精灯内的燃料是酒精这体现了酒精具有的化学性质是．
物质的性质与用途之间有密切的联系据此回答下列问题．氮气的化学性质不活泼在焊接金属时常用作
物质的结构性质用途及保存方法之间有密切的联系据此回答下列问题．氮气常用作保护气体现了氮气的化学性质是
物质的结构性质及用途之间有密切的联系据此回答下列问题． 酒精具有可燃性可以用做
物质的组成与结构决定物质的性质性质决定用途用途体现性质根据这一理论回答下列问题1由于酒精能在空气中燃
物质的结构性质用途及保存方法之间有密切的联系据此回答下列问题． 稀有气体在通电时能发出光可以用作
物质的组成与结构决定物质的性质性质决定用途用途体现性质根据这一理论回答下列问题1由于酒精能在空气中燃
物质的性质与用途之间有密切的联系据此回答下列问题.1氮气的化学性质不活泼在焊接金属时常用作2酒精灯内
物质的结构性质用途及保存方法之间有密切的联系据此回答下列问题． 氧气和二氧化碳的化学性质不同是因
物质的结构性质用途及保存方法之间有密切的联系据此回答下列问题氮气常用作保护气体现了氮气的化学性质是
物质的组成结构性质和用途之间关系密切根据这一思想回答下列问题填写物质相应的性质.1利用氧气急救病人是
物质的结构性质及用途之间有密切的联系据此回答下列问题水和过氧化氢的化学性质不同是因为它们的不同．
物质的性质用途及保存方法之间有密切的联系据此回答下列问题 1氢气具有可燃性可以用做 2氮气常用
物质的结构性质用途及保存方法之间有密切的联系据此回答下列问题．稀有气体在通电时能发出光可以用作
物质的性质与用途之间有密切的联系据此回答下列问题.1氮气的化学性质不活泼在焊接金属时常用作2酒精灯内
物质的组成与结构决定物质的性质性质决定用途用途体现性质根据这一理论回答下列问题1由于酒精能在空气中燃
物质的组成结构性质和用途之间存在着密切联系回答下列有关问题石墨能制成铅笔芯是利用石墨的性质
物质的结构性质及用途之间有密切的联系据此回答下列问题氮气常用作保护气体现了氮气的化学性质
根据物质结构性质用途之间的关系回答下列问题⑴物质的结构决定物质的性质如活性炭具有疏松多孔的结构因此活
热门试题
更多
Canyoutellmeifthedancingroomwasinyourschoollastyear?build
小丽同学进行探究并联电路中电流规律的实验电路如图所示她用电流表分别在ABC三处测得电流如下表．请帮她完成如下几项工作．1比较下表数据可以得出结论是．2小丽把电流表接入A点当闭合开关时发现电流表指针如图甲所示故障原因是．3该实验设计上的不足之处是实验次数太少应该多次进行实验多次测量的目的是．
阅读短文掌握其大意然后从每小题所给的四个选项中选出一个最佳答案LastnightIwasdrivingfromHarrisburgtoLewisburgadistanceofabout80miles.ItwaslateandIwasdriving36.AtonepointalonganopenhighwayIcametoacrossroadwithatrafficlight.Iwas37ontheroadbynowbutasIcamenearthelightitturned38andIbrakedtoastop.Ilookedleftrightandbehindme.Nothing.Notacarnosuggestion迹象ofheadlights车灯39thereIsatwaitingforthelightto40theonlyhumanbeingforatleastamileinany41.IstartedwonderingwhyI42torunthelight.Iwasnotafraidofbeingcaughtbecausetherewas43nopolicemananywherearoundandtherecertainlywouldhavebeenno44ingoingthroughit.Muchlaterthat45afterI'dmetwithagroupinLewisburgandhadclimbedintobednearmidnightthequestionofwhyI'dstoppedforthatlight46me.IthinkIstopped47 it’spartofacontract契约weallhavewitheachother.It’snotonlythelawbutit'sanagreementwehaveandwetrusteachothertofollow48:wedon’tgothroughredlights.Wedo49 wesaywe’lldo.Weshowupwhenwesaywe'11showup.Iwasso50 ofmyselfforstoppingforthatredlight.AndasnoonewouldeverhaveknownwhatagoodpersonIwasontheroadfromHarrisburgtoLewisburgIhadtotellsomeone. 36.A.fast B.slowly C.carefully D.hard 37.A.late B.alone C.worried D.afraid 38.A.green B.yellow C.red D.dark 39.A.and B.or C.so D.but 40.A.return B.change C.start D.continue 41.A.attention B.background C.direction D.information 42.A.refused B.decided C.prepared D.forgot 43.A.hardly B.luckily C.usually D.clearly 44.A.danger B.excuse C.space D.energy 45.A.moment B.night C.afternoon D.morning 46.A.dependedon B.lookedforwardto C.lookedforwardto D.camebackto 47.A.though B.unless C.because D.until 48.A.me B.it C.him D.us 49.A.what B.how C.why D.That 50.A.tired B.ready C.proud D.sorry
Thebestfriendseachotherwhentheymetatthestationbychance.hug
直角坐标系中一长方形的宽与长分别是68对角线的交点在原点两组对边分别与坐标轴平行求它各顶点的坐标．
AndrewHollemana12-year-oldboylovedplayingintheopenlandnearhishome.Thelandwaswetandforestedandmadeahomeforthebirdsotheranimalsandmanydifferentplants. Itmadetheperfectplaceforhimtostudyandgettoknowthenature.Hehadseensomered-tailedhawksredfoxeswoodturtlesandotheranimals.Healsofoundspecialnativeflowers. Suddenlyitwasannouncedthatthe“empty”landwouldbeimprovedbyalotofhousesonit.Theplantswouldberemovedtheanimalswouldrunawayandmostwouldprobablydie.Thenthewetsoil土壤wouldbecoveredwithextragrounds. Whenheheardaboutthenewshewasnothappy.Hewasveryworriedthatthelandandwaterwouldbepolluted. Andrewwrotedownclearlyalltheresearchhehaddoneabouttheareaandhowthehouseswouldaffect影响thelocalenvironment.Hesentletterstomembersoflocalgovernmentandtelevisionreporters.Healsocalledonhisneighborstoopposethebuildingofthehouses. Althoughhewasonly12yearsoldhehadthecourageandwisdomofapersonmucholder.Andrew9steachersdescribedhimasgentleshyandactive.Hisclassmatesalsoadmiredhowmuchheknewaboutlocalanimalsandplantsandtheenvironment.EachdayafterschoolAndrewwentdoor-to-doortoaskthepeopletosign签名whodidnotwantthehousestobebuilt.Inonlyonemonthhegotthesignaturesof250people. Intheendthelandremainedasafeplaceforbirdsanimalsandplantsthatbelongedthere. Andrewwonmanyprizesforhisbraveandgreatworktostopthehousesbeingbuiltandthushelpsavetheenvironment. 51.Thepassageismainlyabout. A. 250peoplewhosignedtohelpAndrew B. abraveboywhocaredfortheenvironment C. theopenlandthatsuitedanimalsandplants D. theresearchofimprovingtheenvironment 52.Theunderlinedword“oppose”inthepassageprobablymeans. A.supportB.dislikeC.disagreeD.prefer 53.Andrewwasveryworriedbecause. A. theanimalswouldbekilled B. newhouseswouldbebuiltontheopenland C. notalltheneighborsweregoingtosign D. thelocalgovernmentmadearightdecision 54.AccordingtothepassageAndrew. A. wasgoodatgoingdoor-to-door B. gotinnotouchwiththereporters C. usuallyactedlikeapersonmucholder D. waspraisedbyhisteachersandclassmates 55.Wecaninfer推测that. A. thelandwouldremainasitusedtobe B. theopenlandwouldbebuiltintoapark C. theneighborswouldhavetomoveaway D. Andrewwouldsoonworkforthegovernment
点Aab与点B-34关于y轴对称则a+b的值为．
JourneytotheWestisabookinfluencesChineseteenagersalot. A.who B.when C.which D.what
Thereacoupleoftreesinthegardennearmyhome. A.am B.is C.are D.be
小刚打扫房间时用干绸布擦穿衣镜发现擦过的镜面很容易粘上细小绒毛．这是因为擦过的镜面因摩擦而带上．带电体有的性质．
formeatthebusstationacrossfromthepostoffice.Icanfindyoueasily. A.Wait B.Towait C.Waiting D.Waits
IthescientistTuYouyouforhersuccessintheChinesemedicine.
MybestfriendgotatmebecauseIwaslateforherbirthdaypartylastSunday.
在图12所示电路的○里填上适当的电表符号要求闭合电键S两灯均能发光．
如图中的一张脸小明说如果我用02表示左眼用22表示右眼那么嘴的位置可以表示成
Mr.Chenwantstogiveup butit'sreallyhardforhimto .A.smoke;giveupit B.smoking;giveupitC.smoking;giveitup D.smoke;giveitup
SorryItookyourschoolbaginsteadofminebyyesterdayevening.
质量为80kg的运动员在某次训练中排汗0.7kg假如汗水均从身上蒸发掉而没有流掉水蒸发吸收的热量可以将运动员的体温升高或降低约℃内能改变了J．人体主要成分是水可认为人的比热容和水的相等每千克汗水汽化所需吸收的热量为2.4×106J．
Ourteachersuggestedplanstoreviewforthecomingmonthlyexam.make
Theonthetreesturnyellowandredinautumnandtheylooksobeautiful.leaf
如图如果所在位置的坐标为﹣2﹣2所在位置的坐标为1﹣2那么所在位置的坐标为．
如图所示物重G为600N用滑轮组将重物匀速提升5m所用拉力F为250N．求1有用功2滑轮组的机械效率．
1在平面直角坐标系中将点A-34向右平移5个单位到点A1再将点A1绕坐标原点顺时针旋转90°到点A2．直接写出点A1A2的坐标2在平面直角坐标系中将第二象限内的点Bab向右平移m个单位到点B1再将点B1绕坐标原点顺时针旋转90°到点B2直接写出点B1B2的坐标3在平面直角坐标系中．将点Pcd沿水平方向平移n个单位到点P1再将点P1绕坐标原点顺时针旋转90°到点P2直接写出点P2的坐标．
Weteenagersneedtoreadmorebooksondifferentcultureaboutforeigncustomsandmanners. A.tolearn B.learn C.learns D.learning
OldMikewassadbecauseofhistwosonscamebackonFather'sDay. A.all B.none C.neither D.either
—Willyoustayathomeorvisityourgrandparents? —.Imissthemverymuch. A.YesIwill.B.I'llstayathome C.NoIwon't D.I'llvisitmygrandparents
—Doyoumindifyourfriendturnsuplate? —.IamneverlatesoIexpectthemtobeontime. A.NoIdon't B.Notatall C.Ofcourse D.I'mafraidIdo
热门题库
更多
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库
高一上学期物理
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
湘公网安备 43130202000226号