relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmethodandpolymethodofrelationshipmeasurementdistanceofmethod1,andtoolmeasurement2,andestimates16,andsubject:geometrypreliminaryknowledge(1)--lineandanglereviewcontentline,andsegment,andRay,andvertical,andparallel,andangleangleofclassification(slightly)17,andsubject:geometrypreliminaryknowledge(2)--planegraphicsreviewcontenttriangle,andedgesshaped,andround,andfanaxisymmetricgraphicsperimeterandareacombinationgraphicsofareasubject:Preliminaryknowledge(3)-reviewofsolidcontentcategory1-dshapesaredividedinto:cylinderandcone2,columnisdividedinto:cuboid,square3,coneconeofthefeaturesofcuboidsandcubesrelationshipbetweencharacteristicsofcircularconeisslightlysolidsurfaceareaandvolume1,size2,table...和和平与发展是当今世界发展的主题,中国作为屹立在世界东方的大国,要担负起重要的责任。从“亚太自由贸易区”到“亚投行”、“一带一路”,再到G20峰会,都体现出中国一个负责任的大国形象。第四章非金属及其化合物基础知识复习学案【知识整理】:一.无机非金属材料的主角—硅1.硅.含量:硅在地壳中含量为,居第位。制备:(1)用碳在高温下还原二氧化硅质制取粗硅;SiO2+2C高温Si+2CO↑(2)将粗硅在高温下跟氯气反应生成四氯化硅;Si+2Cl2高温SiCl4(3)四氯化硅经提纯后,再用氢气还原,得到高纯度的硅。SiCl4+2H2高温Si+4HCl2.二氧化硅和硅酸(1)二氧化硅(可用于制造光导纤维)物理性质:SiO2是溶于水的固体,熔、沸点,硬度(“大”或“小”)。化学性质:①与氢氟酸反应方程式:,利用此反应可用HF的溶液来玻璃。②酸性氧化物SiO2与CaO反应方程式:SiO2与NaOH反应方程式:;思考:实验室中盛放NaOH溶液的试剂瓶用塞不用塞,试解释其原因?(2)硅酸制法:硅酸钠溶液与稀盐酸反应方程式:产生现象是。化学性质:①弱酸性酸性比较碳酸硅酸。向硅酸钠溶液中通入CO2反应方程式:。②不稳定性硅酸受热发生分解生成和其化学方程式:3.硅酸盐是由组成的化合物的总称。硅酸钠:其水溶液俗称,呈(“酸”或“碱”)性,是制备玻璃:制取普通玻璃原料是,普通玻璃的成分是。表格:1、硅酸和碳酸的性质比较物质硅酸碳酸化学式H2SiO3H2CO3酸酐SiO2CO2制法硅酸胶体的制备:Na2SiO3+2HCl=2NaCl+H2SiO3↓CO2+H2O=H2CO3颜色与状态白色、固体无纯态,只存在于水溶液中水溶性不溶于水只存在于水溶液中酸性比较H2CO3>H2SiO3向硅酸钠饱和溶液中通入二氧化碳,同样可得到硅酸凝胶,说明硅酸是一种酸性比碳酸还弱的弱酸。relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmethodandpolymethodofrelationshipmeasurementdistanceofmethod1,andtoolmeasurement2,andestimates16,andsubject:geometrypreliminaryknowledge(1)--lineandanglereviewcontentline,andsegment,andRay,andvertical,andparallel,andangleangleofclassification(slightly)17,andsubject:geometrypreliminaryknowledge(2)--planegraphicsreviewcontenttriangle,andedgesshaped,andround,andfanaxisymmetricgraphicsperimeterandareacombinationgraphicsofareasubject:Preliminaryknowledge(3)-reviewofsolidcontentcategory1-dshapesaredividedinto:cylinderandcone2,columnisdividedinto:cuboid,square3,coneconeofthefeaturesofcuboidsandcubesrelationshipbetweencharacteristicsofcircularconeisslightlysolidsurfaceareaandvolume1,size2,table...和和平与发展是当今世界发展的主题,中国作为屹立在世界东方的大国,要担负起重要的责任。从“亚太自由贸易区”到“亚投行”、“一带一路”,再到G20峰会,都体现出中国一个负责任的大国形象。22、二氧化碳与二氧化硅的比较3、常见的硅酸盐产品――传统的无机非金属材料硅酸盐产品原料主要设备主要成分玻璃纯碱、石灰石、石英玻璃窑Na2O·CaO·6SiO2陶瓷黏土水泥黏土和石灰石水泥回转窑CaO·SiO22CaO·SiO23CaO·Al2O33.特殊功能的含硅物质物质性质用途碳化硅俗称金刚砂、具有金刚石的结构,硬度很大砂纸、砂轮的磨料含4%的硅钢有很高的磁性变压器芯片硅橡胶目前最好的耐高温又耐低温的材料制造火箭、导弹、飞机的零件和绝缘材料人工制造的分子筛具有均匀微孔结构,表面积大、具有吸附性吸附剂和催化剂【例1】海南.门捷列夫在描述元素周期表时,许多元素尚未发现,但他为第四周期的三种元素留下了空位,并对它们的一些性质做了预测,X是其中的一种“类硅”元素,后来被德国化学元素家文克勒发现,并证实门捷列夫当时的预测相当准确。根据元素周期律,下列有关X性质描述中错误的是()A.X单质不易与水反应B.XO2可被碳或氢还原为XC.XCl4的沸点比SiCl4的高D.XH4的稳定性比SiH4的高二氧化碳二氧化硅状态物理性质化学性质与水反应与碱反应熔融烧碱时,使用石英坩埚与碱性氧化物反应氧化性与酸反应relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,and