内蒙古自治区鄂尔多斯市准格尔旗2020届九年级上学期期中考试化学试卷
※题型：单选题※知识点：单选题※试题难度：较易<br>下列各图所示变化中,属于物理变化的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/3/B660C0EE385D19BA7F0FB62A848CF387.png"><br>带火星的木条<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/3/F00C325CF158CFDB2D203C2186A09CCF.png"><br>对着干燥玻璃片呼气<br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/3/09050B2F573EF6DC9A7ADF0675EF49C9.png"><br>硫在氧气中燃烧<br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/3/D1A6F3050F9151EB5D460A949FE2B1C6.png"><br>向澄清石灰水中吹气<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/158e6ce2a06349a8b45b7e38993f1c4d/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/fa1ee6041e2048e991261e95f9228bdf/284EE0192F2726C607E2F0922158BC8F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>给50毫升液体加热,需要使用的仪器是下列中的( )<br>①试管②烧杯③试管夹④酒精灯⑤蒸发皿⑥石棉网⑦铁架台⑧玻璃棒A.①③④ B.②④⑥⑦ C.②④⑦ D.④⑤⑦⑧<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/6ed714947c0d4cceb9a9307e8e989d75/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/4cd927db71964422968d155f14583210/0720459250EB254E127902E5E6CA2673.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于燃烧和灭火的说法正确的是( )<br>A.蜡烛一吹就灭是因为隔绝了空气<br>B.炉火越扇越旺是因为增加了可燃物<br>C.在氧气中用小木条引燃铁丝是为了升高铁丝的着火点<br>D.水下保存白磷是为了隔绝氧气防止其自燃<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/320ea25e0e38400a921b537b393ad0c5/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/e593f420c2d444c4a9289f874826767a/D5681EE3CE9C49FE847766EFB316635E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列化学符号中数字“2”表示的意义,正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/AB50DA95A0B1CD0D07E552BEDF604CD5.png"><br>——表示二氧化硫中含有2个氧原子<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/16A562E15D919E5D16C494D8B60900D7.png"><br>——两个一氧化碳分子<br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/471E1BBEF4616CC26DDFE443E5F0B8C9.png"><br>——一个钙离子带两个单位正电荷<br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/44EE0F6DE602E728125F3A5534DA683C.png"><br>——表示2个铁元素<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/1ae1bb5f5c6c4b50bc5d0ffb52a266b8/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/9f07a2a93105402284af580fcf1f81bd/934E4E176AD71D4331AF1A429D494185.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列叙述正确的是( )<br>A.物质与氧气发生的反应一定属于化合反应<br>B.夏天钢轨之间的缝隙变小是因为原子变大了<br>C.水通电分解说明分子在化学反应中可以再分<br>D.氮气的化学性质活泼,可以充入灯泡中,延长使用时间。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/e0d5c24ff78e469d9f80647addfd320f/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/565c493d8fc94e1f81a774a333cbcc75/D5643D8E1CAA8E7EFB601F672AA491DF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某化学反应的微观示意图如下(反应条件己省路),根据该图得出的结论不正确的( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/BF38D020F016D6E0A69BCD0A5AF36158.png"><br>A.四种物质中只有丁属于氧化物<br>B.化学反应前后元素种类和原子的种类及数目均没有发生变化<br>C.反应前后只有氢元素的化合价没有发生变化<br>D.该反应中甲、丙分子数之比为1:1<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/1c078713dca448889df03af130fc37b9/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/a9c2486981264e79a56cc1eff801d63e/D44B6F4E2CA29F6AE42D97508E89DF3B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图所示的四个图像,能正确反映对应变化关系的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/8F6F85274772223599B84E64A89401EE.png"><br>一定量的高锰酸钾分解制氧气<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/C19F18CC60033200E72357FC6DB31094.png"><br>一定量的磷在空气中燃烧<br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/7D00F702ED1123B7244C8702D3229250.png"><br>加热一定量的氯酸钾制取氧气<br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/841489F903DAEACD8139E09B86991A62.png"><br>镁条在密闭的容器内燃烧<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/24505d1aeecc4a05859227b3e144239e/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/6b2a8d3b18b0461da84b8c0f3d86377b/9517033DC1AE1EFCEE6B7732993D360E.png"><br><br>※题型：问答题※知识点：问答题※试题难度：较易<br>用数字和符号表示:<br>1.保持氧气的化学性质的微粒________;2.标出氧化铁中铁元素的化合价________.<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/e15a2f9b15054808ac09cd196ee8751b/210252BB3AB7D7DA18B4F39DCC65DF1D.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/37188f1fed464f0dac3f7264af412cd6/87A117A3D722E5FC07973F43C6E8D1B3.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>某化学兴趣小组的同学对空气中氧气含量的测定实验进行探究。<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/CA77FD7E2154BDD4701F8827B4602586.png"><br>1.如图1所示装置和药品进行实验,实验中可观察到的现象是_______________(现象描述完整,否则不得分);2.该实验还可推论出氮气的性质有(写出一条即可):____________________。3.小组内同学将图1装置进行改进,如图2,写出图1装置的两个不足点______________、________________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/96ddf6f6d51844d7a6d7d57f03758274/3BF50495B2DE0FA7AB3730436BC0887F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/35f264ebb3de4850adbe5086434c3c6d/141D37087048BC8790F9FB30C5FCFB98.png"><br><br>※题型：问答题※知识点：问答题※试题难度：较易<br>下表是元素周期表中第<br>、<br>周期的元素,请回答有关问题。<br><tbody><br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/5B114510A763BEA94A6871E473A388A9.png"><br>锂<br>6.941<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/3317668C43AC8BE7AA13F25DFAE25D72.png"><br>铍<br>9.012<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/D2C993141114EB342839E4E642B69D42.png"><br>硼<br>10.81<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/2CBB448EAD137249D1A104A8A6DDA071.png"><br>碳<br>12.01<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/4CB23D2E7DFFA4D13865C5226EA41C2F.png"><br>氮<br>14.01<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/3B5D692A8BF2EC1D4DD8D117710A6DAF.png"><br>氧<br>16.00<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/F276EDA22C216BF59B4114428028E2EB.png"><br>氟<br>19.00<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/8B08098077BD9764EA190389E602DDDA.png"><br>氖<br>20.18<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/D568D5874172CED1E39AD1D9EEEDED0E.png"><br>钠<br>22.99<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/94E6FB4AEDB983BD7ADDC8C5FC34961E.png"><br>镁<br>24.31<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/703B8071FAA52DB97536EC973E5B5A83.png"><br>铝<br>26.98<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/563B4232B859BA077873F88FD56FA866.png"><br>硅<br>28.09<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/1D04B5DB9863167779DFD924E12C5FA3.png"><br>磷<br>30.97<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/A211A83F6DEA67253B0F79B5D26FE79F.png"><br>硫<br>32.06<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/53E077FC45DCA28DDF5D0F91ECA217CA.png"><br>氯<br>35.45<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/29C6D3FD4FCB22CD5D41180F9DEA1FB4.png"><br>氩<br>9.95<br></tbody><br>1.铝元素的相对原子质量为________________;2.下列各组具有相似化学性质的元素是_______________(填字母序号);A<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/9FC419C1BBEE403DE01CCB62FEC9D101.png"><br> B<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/6CB05099EABED82C23D9DDBFB9AE5C85.png"><br> C<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/598FBAFB2B6160F435FF4B3A6C94B38C.png"><br> D<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/51B1C15A1E283E56D6E5E88C0237D80E.png"><br>3.第8号元素与第13号元素的原子形成化合物的化学式为_______________;4.某粒子的结构如图,当<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/C31DC2BF62E86041C6497F53A47C1F4F.png"><br>时,该粒子的符号为_______________;<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/D557A65C8848BCDC7C398F6F206350F1.png"><br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/740BF5C8A3D0E201BC617A1C85E114E5.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/1623d14f3c7b4da4b10b02b7bcbdef1e/13A7A4BA9E0602028AAC27D957AD5B57.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/fe2b3d0c03b1468b881453ec06e13562/C3CA1DB200B64420E3787913905AA4D5.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>城市居民生活所需净水,主要靠自来水厂供给。自来水的生产过程如图所示。<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/58B1B9A6202745BC4DC362BB92EE444D.png"><br>1.下列属于自来水生产使用的净水方法是________(填序号)。A沉淀 B过滤 C煮沸 D蒸馏2.自来水生产可用氯气进行杀菌消毒.请将氮气与水反应的化学方程式补充完整:________。3.生活中检验软水、硬水可以用________,用________的方法降低水的硬度。4.保护水环境,节约用水是每个公民应尽的责任和义务.你认为下列做法与之不相符的是________。A使用无磷洗涤剂B关闭建在河边或湖边的所有化工厂C向农民宣传科学知识,让他们禁止使用农药、化肥D生活污水放入池塘里静置后再排入江河中E洗菜、洗衣、淘米的水用来浇花、拖地、冲厕所<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/b2ed27f04aab4e83aa95f89693925c1e/977636C91A06AECF5E84DFBE46D4A3D9.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/1e700cc7e49348639f06f9af294b6680/4DE505824CEC42CE9D285E028AB2A409.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>A<br>、<br>B.…H<br>八种物质,有下图所示转化关系:其中<br>D<br>能使带火星的木条复燃,<br>E<br>常温下为液态,<br>H<br>是一种黑色固体,在<br>①<br>的反应前后<br>B<br>的质量和化学性质都不改变,试推断:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/131A97CFDC8F370B8B62966118DA8B6A.png"><br>1.写出物质的化学式:C________________,E________________;2.写出反应①的化学方程式:________________,写出反应②化学方程式:________________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/6f88b7dbe66f48749c600086f86f2d6f/F635DFC154E73ED28B69EED28A8B7ECE.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/6b23f4758812477fa9d976aa5ae3b652/FD3A28A7D425BAF02B22063F3E3B7EB4.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>如图是实验室制取气体的常用装置,请结合装置回答下列问题。<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/404959C2D412EA2C2B90AF17B9F802D9.png"><br>1.实验室可以选择B装置用双氧水制取氧气,也可选择A装置用加热氯酸钾制取氧气,若两实验中都用到了同一种黑色固体药品,它在这两个反应中起________作用;请你写出用氯酸钾制取氧气的化学方程式:________________。2.如果要收集到较纯净的氧气应选择的收集装置是________;采用G装置收集氧气,如何确定氧气已满?________________,这说明氧气具有________性质。3.若实验室用C.F装置组合制取某种气体,应满足的条件是________。A反应物是块状固体和液体,反应在常温下进行B制得气体密度比空气大C制得气体密度比空气小D制得气体难(不易)溶于水E制得气体易溶于水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/3f87df572933475eb8272244f8da8a70/8E228485A3E788E3E59F68B795E7C2EC.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/df7b676c452749ec8a8c8a21d94aa679/A8726B266339DBB1198461B056DEBC9D.png"><br><br>※题型：实验题※知识点：实验题※试题难度：中等<br>某学生为了探究甲烷的组成元素,设计并完成了如下探究实验,请你帮他完成下面的实验报告:<br>提出问题:甲烷中含有哪些元素?<br>(查阅资料)含碳元素的物质完全燃烧生成<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/7002435560602C62060BA723DC55D86C.png"><br>实验探究:<br><tbody><br>实验步骤<br>实验现象<br>解释与结论<br>①<br>在空气中点燃甲烷,<br>②<br>将洁净干燥的小烧杯罩在甲烷燃烧的火焰上方。<br>烧杯内壁有水珠。<br>证明生成物有水,甲烷中一定含有<br>_______<br>元素。<br>③<br>将蘸有<br>澄清石灰水的小烧杯罩在甲烷燃烧的火焰上方。<br>_____________<br>证明生成物有<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/7002435560602C62060BA723DC55D86C.png"><br>.<br>甲烷中一定含有<br>______<br>元素。<br></tbody><br>(<br>)表达与交流:经实验测定甲烷的化学式为<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/5AE69F147234DF32EF5E64E5C6878C8F.png"><br>,请你写出甲烷燃烧方程式:<br>________________<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/6f78109fd1074bd094fbd16b3b0b8eeb/4B7FE96F28F09A639C4290C213256B30.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/1ed22af5888b436ab2a2205792cff8e6/5C7E3D2ECAAB32A49E9470AD4450DD4B.png"><br><br>※题型：问答题※知识点：问答题※试题难度：较易<br>加热<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/CBA1BC0FB3CE85DCD6BFD4214A96B38C.png"><br>高锰酸钾制取氧气,经一段时间后,称量剩余固体的质量为<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/15/25E2E099A5227B5B8182BD9F659645B4.png"><br>.<br>计算:<br>1.生成氧气_____________克?2.参加反应的高锰酸钾的质量是_____________?<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/53f1d270cca84ecd90d3c05d6d318669/D5F6D343DD85D8687746783B89E28E4B.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/7145a23a9f3049d3a11f7b9bdbc29746/3779942D86BEA55B9604132D2B0862DD.png"><br><br>
页:
[1]