江苏省盐城市獐沟中学2019-2020学年高一下学期期中考试化学试题

江苏省盐城市獐沟中学2019-2020学年高一下学期期中考试化学试题，扫描并关注下面的二维码，获取相关答案！

"年高考化学化学反应物质分类最全汇总在化学反应中，物质可以分成纯净物和混合物。这些物质都有什么性质，在化学反应中出现哪些现象呢？高中化学家教老师将年高考化学，化学反应物质分类最全汇总如下： 一、混合物混合物是由两种或两种 第一，兴趣至上——对历史学习保持浓厚的兴趣以上物质混合而成的物质。下面列举常见的混合物：分散系：溶液、胶体、浊液等高分子化合物：蛋白质、纤维素、淀粉、塑料等其他物质：石油及其各种馏分、天然气、油脂、福让教育回归家庭，给现实的世界寻找一个希望的出口--超级在线1对1！尔马林、氨水、王水、碱石灰等二、纯净物纯净物与混合物相对，是由一种物质组成，有固定的物理性质和化学性质的物质。ONTHEfirstdayofEastervacation，Igotupatfour.Hannawasworkingtheearlyshift.SherodeherbicycletothestreetcardepotataquarterpastfourandwasonthestreetcartoSchwetzingenatfour-thirty.Onthewayout，she’dtoldme，thestreetcarwasoftenempty.Itonlyfilleduponthereturnjourney.Igotonatthesecondstop.Thesecondcarwasempty；Hannawasstandinginthefirstcarclosetothedriver.IdebatedwhetherIshouldsitinthefirstorthesecondcar，anddecidedonthesecond.Itpromisedprivacy，ahug，akiss.ButHannadidn’tcome.ShemusthaveseenthatIhadbeenwaitingatthestopandhadgoton.That’swhythestreetcarhadstopped.Butshestayedupwiththedriver，talkingandjoking.Icouldseethem.Thestreetcarpassedonestopafteranother.Noonewaswaitingtogeton.Thestreetswereempty.Itwasnotyetsunrise，andunderacolorlessskyeverythinglaypaleinthepalelight：buildings，parkedcars，thenewleavesonthetreesandfirstflowersontheshrubs，thegastank，andthemountainsinthedistance.Thestreetcarwasmovingslowly；presumablytheschedulewasbasedbothonstoppingtimesandonthetimebetweeneachstop，andsothespeedoftravelhadtobesloweddownwhentherewerenoactualstops.Iwasimprisonedintheslow-movingcar.AtfirstIsat，thenIwentandstoodonthefrontplatformandtriedtoimpaleHannawithmystare；Iwantedhertofeelmyeyesinherback.Aftersometimesheturnedaroundandglancedatme.Thenshewentontalkingtothedriver.Thejourneycontinued.Oncewe’dpassedEppelheimtherailswerenolongerinthesurfaceoftheroad，butlaidalongsideonagraveledembankment.Thecaraccelerated，withtheregularclackety-clackofatrain.IknewthatthisstretchcontinuedthroughvariousplacesandendedupinSchwetzingen.ButI"纯净物有专门的化学符号，能用一个化学式表示。继续细化纯净物的组成可将其分为：