2023学年高一第一学期杭州北斗联盟期中联考语文试题及答案

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书面表达One possible version:NOTICEA sports meeting will be held in the playground of our school from next Thursday to FridayAs you know, the pressure of study is very heavy now, especially for those senior 3. So the purpose of the sports meeting is to letevery student get relaxed, as a result of which we students can live happily and heal thilyEveryone is welcome to take part in it. Those who perform excellently at the sports meeting will get prizes. But don' t take theresults so serously because taking part is more important than the result. Good luck to everyone!

不能大量共存,且NO3能氧化HSO,不能大量共存,D项错误。6.A【解析】0.1mol·L-1NaOH溶液中,Nat、K+、CO-、AlO2间不反应,且与OH-不反应,能大量共存,A项正确;MnO7与Fe2+发生氧化还原反应,不能大量共存,B项错误;Ba2+与CO-反应生成沉淀,不能大量共存,C项错误;酸性条件下,H+与HSO7

1.(25分)(1)bd(4分)(2)d(4分)(3)CO2(4分)氨气分子为极性分子,易溶于极性溶剂水中;氨气分子与水分子间易形成氢键;氨气可与水反应(5分)(4)氢键、范德华力(4分)非极性键(4分)【解析】(1)由结构简式知,维生素B1中存在离子键非极性共价键、极性共价键,a项错误,bd项正确;与氯化钠晶体相比,维生素B1中阳离子半径比Na+半径大,维生素B1的晶格能小,熔点不可能高于NaCl,c项错误。(2)维生素B1晶体溶于水的过程中会电离出C-等需克服离子键维生素B1分子间存在氢键、范德华力,故选d项。(3)N2为单质另外五种化合物中属于非极性分子是CO2。NH3极易溶于水,是因为NH3和水均为极性分子,NH3溶于水后,NH3与水分子间可形成氢键,NH3可与水反应(4)液氨汽化破坏分子间作用力,包括氢键和范德华力;氨气分解生成N2和H2,破坏氮氢极性键;N2、H2生成氮原子和氢原子,破坏非极性键。