四川省宜宾市叙州区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：中等<br>下列图示的实验操作中正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/ED04A7D204805B0E0342A39C543DBCEE.png"><br>闻气体气味<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/6EE0D07E69E0121C346215D453B50969.png"><br>点燃酒精灯<br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/952C02E5562E0AC15D65B9EEFA3798E9.png"><br>液体取用<br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/6B9888398C0E6BEF2FD6A0A6600AD9DF.png"><br>量筒读数<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/429350dce3ef4c64b1edf3b8e260f792/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/4f751f97a80845e48ae947b48d6504d4/343332E722F31510039A96B0876D94B5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列物质中,含有氧分子的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/CE3FB2E68B350B28E5B76D176FE3FE33.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/19DB00263A67B64F8C686CD794139E8F.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/3AB34B1B8224706C6E4369A324ED490A.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/2/2/E947C2E36CD3B4692A2CC3A67A71F96C.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/a1e2e28edab94fdd84a8d51cf37b5e78/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列变化中不属于化学变化的是( )<br>A.冰雪融化为水 B.动植物的呼吸<br>C.钢铁制品的生锈 D.天燃气的燃烧<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/98fd10d86dbd4b0f89b83e006b7da345/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/f62fac81729a4986996d070b2c68b63d/F7A565885E39013844ACD79E5BDEBB32.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列净水方法中,净化程度最高的是( )<br>A.静置 B.过滤 C.吸附 D.蒸馏<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/35cb6839e8714717b923b3e121b2ec4f/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/1535403518944d69973a1c71c64294c5/A51B5D543FD1FFE943EA1A4DBDC0596C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>空气成分中,约占总体积的21%是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/FFADA5F19AA4D4614F9C6B59C27E9FFB.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/CE3FB2E68B350B28E5B76D176FE3FE33.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/EC3292BA20EA95699E445A75CBF39462.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/3AB34B1B8224706C6E4369A324ED490A.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/f33eb972fb3f4e9291029d29dbebd758/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/db73e4d7061d47ab83c8831172082cec/D0E6E21363026D7808DF072B738F6969.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>实验室用高锰酸钾制取氧气的过程如下,正确顺序是( )<br>①给试管加热;②熄灭酒精灯;③检查气密性;④把高锰酸钾装入试管,在试管口堵一小团棉花,用带导管的胶塞塞紧,固定在铁架台上;⑤用排水法收集氧气;⑥从水中取出导管A.③④①⑤⑥② B.③④①⑤②⑥<br>C.④①③⑤②⑥ D.①①③⑤⑥②<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/2a076491ca9849548b3641e9114463e6/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/2ad39401a4fb4854af45c566d303d247/0CF22D3C66966E6C1473F4E4B211A749.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>治疗手足口病的常用药物阿昔洛韦化学式为:<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/3DDAA5F2942BB1EAA58A28B0C2079A7B.png"><br>.下列有关说法不正确的是( )<br>A.阿昔洛韦属于有机化合物<br>B.阿昔洛韦的相对分子质量为225<br>C.阿昔洛韦中C、H、N、O三种元素的质量比为8:11:5:3<br>D.阿昔洛韦的一个分子中含有27个原子<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/bf7fd2bd4bbf47eb9d8c8dd066aa4648/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/061ac15b09e143238f747dd25c4c942b/A7B52109BCC1667AF8FF29DFA4BB5CD1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>生活中的下列现象,用分子的相关知识加以解释,其中不正确的是( )<br>A.室内插花,满室飘香,说明分子不断地运动<br>B.热胀冷缩,说明分子大小随温度而改变<br>C.10mL酒精和10mL水混合后,体积小于20mL,说明分子之间有间隔<br>D.湿衣服放在火炉旁,干得较快,说明分子运动速率随温度升高而增大<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/60a2f34585c14c0f98829ad3f37820b9/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/40a528b6591c45a7acadda7b0be84635/377DD892CF053045C35D2530E54FE05E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>2017年5月9日,我国发布了四种人造新元素的中文名称,其中115号镆元素的“镆”取自古代剑名“镆铘”,下列说法正确的是()<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/3CFD17378C89C2BACB292EB8A2E28E1F.png"><br>A.镆属于非金属元<br>B.镆原子中的质子数为288<br>C.镆原子中的中子数为173<br>D.镆的相对原子质量为288g<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/cd6a10ca2c34413fafd9c8f6de7bd2d3/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/87756444223545818337b09dfb3ba7a5/B5A4FF47438F965717C06CFEFE44BF8B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>含磷洗涤剂因含<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/B2CAA258C7FD704998C41DD6AC9F7F78.png"><br>,大量使用会造成水的污染.已知该化合物中磷元素为+5价,则X的值为( )<br>A.10 B.9 C.7 D.5<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/def57ee4d54049d39f3b17a3018af83e/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/268895e0759f485f95d831f5ae5ab1bb/DAAEA8DD298E47652EDF555F6A52B898.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>请用适当的化学用语填空:<br>1.氢元素_______;<br>2.镁离子_______;3.5个碳原子_________;4.3个五氧化二磷分子________;5.相对分子质量最小的氧化物_______;6.氯化钠中钠元素的化合价_________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/0d82b70b35a34ba7915e79d5e1fafe3c/52EE84B2B1B0614B5779C3F6817BC7B4.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/e4668ded4e404d3b88471b74e82a1559/D266062F311E181C269C438DB97A3E60.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>(<br>)写出符号<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/E16DA467B51221D6F5AD69FC9BCB693E.png"><br>中数字<br>“2”<br>的含义:<br>_________<br>;<br>_________<br>(<br>)下列微粒结构示意图中共有<br>________<br>种元素,属于阳离子的是<br>________<br>(填字母),请写出结构示意图<br>E<br>表示的元素与氯元素形成的化合物的化学式<br>_________<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/5A30051C4866560E72BEC60506BB3577.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/6cde2f6bd68a41209f03e72bb964fb8b/BED07A53A50911DF05F026843A44D7BB.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/7996ec7e942b4cd4b2ea09663416ac04/7078B242099AFC3352BB38DF6E2FC6CA.png"><br><br>※题型：问答题※知识点：问答题※试题难度：容易<br>(1)<br>硫是淡黄<br>色的固体;<br>(2)<br>硫在燃烧匙中受热熔化;<br>(3)<br>硫能在氧气中燃烧;<br>(4)<br>硫燃烧生成一种气体,有明亮的蓝紫色火焰;<br>(5)<br>二氧化硫是无色有刺激性气味的气体。上述描述中,<br>属于物理性质的是<br>_______(<br>填序号,本题下同<br>)<br>,属于化学性质的是<br>_______<br>属于物理变化的是<br>_______<br>,属于化学变化的是<br>_______<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/a8ff1420aaa6489a92964e3a4f08cb39/071E83D774A242DD0D7DD8D34E09BD08.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/7ee0545885e5435e8d944fb2509930ed/3D96E453D49AC9077611F8B348905B7E.png"><br><br>※题型：问答题※知识点：问答题※试题难度：中等<br>实验室有下列装置,请根据要求回答问题:<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/B9569C546171ACCD1169B7C46DA9EB84.png"><br>1.写出有标号仪器的名称:①________;②_________。<br>2.实验室用过氧化氢溶液和二氧化锰制取氧气,请用化学式表示该化学反应:_______,选用的发生装置为______(填序号)。3.实验室用高锰酸钾制取氧气并用于验证蜡烛燃烧产物的实验,选用的收集装置为_______(填序号);若用A、D装置制取氧气,当实验结束时,甲同学先移去了酒精灯,忘记将导管从水槽中取出,在水未进入试管之前,可采取的补救措施有:①_________;②________。4.常温下NO是一种无色、难溶于水的气体,密度比空气略大,在空气中能与氧气迅速反应生成红棕色的<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/C767696CB25FABAD622C476A2887E32E.png"><br>气体。请你利用如图仪器I、II,设计收集一瓶较纯净的NO的操作方法:_________。<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/7FBCCFA0C809A0623B02A101775148CD.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/23c4fac72f5f4943a9a0a0b3091998fe/550FBE1ED9A1E874AAD4FDAB99523813.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/8a3ec89ecf214012aa4361489bb740a9/74BEF6384E532EFF249699E02DCE50F1.png"><br><br>※题型：问答题※知识点：问答题※试题难度：较易<br>无土栽培是一种农业高新技术,它可以显著提高农作物的产量和质量。某无土栽培营养液中含有<br>2.02%<br>的<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/490D2448912FDAA82DEDD28BCF750A33.png"><br>1.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/490D2448912FDAA82DEDD28BCF750A33.png"><br>中含有_______种元素。<br>2.<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/490D2448912FDAA82DEDD28BCF750A33.png"><br>中氮、氧的原子个数比为________。3.5000g该无土栽培营养液含氮元素_______g。4.现用10%的<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/490D2448912FDAA82DEDD28BCF750A33.png"><br>溶液配制5000g的2.02%的<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/490D2448912FDAA82DEDD28BCF750A33.png"><br>溶液用来配制该营养液,则需要10%的<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/7/490D2448912FDAA82DEDD28BCF750A33.png"><br>溶液的质量多少?(请写出计算过程)______ <br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/fb17e9c4813b40a684163d019308d540/728F27A30A5EB792024AF283BD2C34DE.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/532857670a50424d9babd3aef30cc965/B060BE0045CBA2DAAE7789D70A3604B2.png"><br><br>
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