2021-2022学年人教版化学九年级化学用语通关小练（3）化学式的意义与书写
※题型：单选题※知识点：单选题※试题难度：较易<br>下列关于葡萄糖(<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/26/D9C8A325A40FCE65D56382110E504339.png"><br>)的说法中,错误的是( )<br>A.属于化合物<br>B.由三种元素组成<br>C.每个分子中含有6个碳原子<br>D.碳、氢、氧元素的质量比为1:2:1<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/b8d2f14ed5ff4fa3b95e1b8a510a8d33/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/226108a24fa44db6ba2754e0108f774d/718579A92D408AAB048E0E50EFA3C3A0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列试剂标签错误的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/2/96554EAA60D76E91AC94CA475A440C4A.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/2/BC9683BA3102D4FD71E24F3432446B22.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/2/F8824C6CE8B1A351D11F504FDB93B772.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/2/DB9551108B5A5F1C48A67E1506F3858A.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/4fe4b31d7b4c42c289e11634d6b6772a/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/6b15ca56ec494257857ee295707c1862/23928FE5E3904A561D54C5C502831F9E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>研究表明,色氨酸(<img src="https://picture2.zhihuicn.com/testImage/2/2021/8/3/5408C6590EBBCC6D5E552B1BC32D4CA6.png"><br>)在人体内含量太低会影响睡眠质量。下列说法错误的是( )<br>A.色氨酸属于有机物<br>B.色氨酸分子中含有氮气分子<br>C.色氨酸由四种元素组成<br>D.色氨酸分子中氢原子与氧原子的个数比为6:1<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/db7adff00a9d41f0bca5b5ce1c014c0a/76900E09FAB5EBA344B8EA84E844FF07.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>下列化学用语关于数字“3”的意义,说法正确的是( )<br>①3Hg②<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/4/C68D4117EE965A9A948417BACC7E9AE5.png"><br>③<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/4/F6CFD688F488964D4928A265FEAE48CC.png"><br>④<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/4/0A735AA0EC1BF034113F019D782C4491.png"><br>A.表示离子所带电荷数的是②<br>B.表示原子个数的是④<br>C.表示分子个数的是③<br>D.表示一个分子中含有某种原子个数的是①<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/9133de04ab9e494b8b463ec9ad7b1b21/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/8d474ee247a3496ba654d226c4bc159f/C95BD93AD0DFD26D13B0C815F664E26C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列有关化学用语中数字“2”意义的说法,正确的选项是( )<br>①<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/4/AB50DA95A0B1CD0D07E552BEDF604CD5.png"><br>②2<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/4/72E318180F1C3D00E8D8DCFDB2D09C08.png"><br>③<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/4/A66929D9729E93B9F969233426C5BD1B.png"><br>④<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/4/063ECEFDA8CBABCF5389F8F22F18689D.png"><br>⑤<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/4/82EB74D584BB9F318D38CE61A10BC7F7.png"><br>⑥<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/4/D350503FAEB172B50F09D85EB5C5B0A3.png"><br>A.表示离子所带电荷数的是③④<br>B.表示分子个数的是①②<br>C.表示化合价数值的是①⑥<br>D.表示一个分子中含有某种原子个数的是⑤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/9b6f3ee5336f41b79a0565e9e27a76af/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/c804e3168ae84ca88ab95d2344821c89/4A1BEC4760C11FEF140AD91A66F89C55.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在“<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/22/8AACB79E473EB37210C7406D75F2B683.png"><br>”中,涉及“1”“2”“3”“4"四个数字,下列关于它们的叙述不正确的是( )<br>A.“1”表示硫元素的个数<br>B.“2”表示1个分子中氢原子的个数<br>C.“3”表示分子的个数<br>D.“4”表示1个分子中氧原子的个数<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/d86188f5f5a542d489ae384b0adc0ac8/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/5eed708e1508415b953e484e6ba25525/77532469D0F7FE5A06986DB3C2B4FAD2.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图,这四位同学描述的是同一个化学符号,此化学符号是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/2712B13EDA6DE67E30CA55F552E5FFD6.png"><br>A.H<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/50E4E7A6B4B7FFB9566412544D7A316C.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/72E318180F1C3D00E8D8DCFDB2D09C08.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/7002435560602C62060BA723DC55D86C.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/b3ab38ef4d5645a3a7950c7c9ab94462/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/4d58975fb6614914be683026767ad697/7DB5854DBCE847E61A6B29D98A11ED45.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列物质的化学式书写正确的是( )<br>A.硫酸铵<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/29/5DA4C3B999566F124EB265BB48063F85.png"><br>B.硝酸亚铁<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/29/F2B63A97D068F8368A610F4A4534B038.png"><br>C.氯化钙<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/29/7FFC0B0B30A498CC2E2670A685BFD69C.png"><br>D.氦气<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/29/B6C731230F30220D392510E82967B4CD.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/2a66a7cbcd104af391d3a5b20f6ccb0e/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/156827f620234104b42fbacd4d9eb071/3A94AF7C0D6DCC09EBA1476C1ECC1D44.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>对于下列几种化学符号,有关说法正确的是( )<br>①H②<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/1422E8856646CB6B0C12518CC10B95DF.png"><br>③Cu④<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/9D4A767AC255622179B4D2EC3C64BE68.png"><br>⑤<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/C68D4117EE965A9A948417BACC7E9AE5.png"><br>⑥NaClA.能表示一个分子的是①④⑥<br>B.表示物质组成的化学式是③④⑥<br>C.②⑤的质子数相同,化学性质也相同<br>D.④中的数字“5”表示五氧化二磷中有5个氧原子<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/4eca2fb788464c999d95a1e531827363/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br>略<br>※题型：填空题※知识点：填空题※试题难度：容易<br>写出下列化学符号中<br>“<br>”的意义<br>:<br>1.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/11/C1FBB14F1DE84C6968428E376A5BCE56.png"><br>表示;<br>2.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/11/2F91D7AEA13C1CC15D9F3FA4C83CFD04.png"><br>表示。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/5e037cd16ddd4a1c86ca76ef9eb830fd/E597995BB1614D3B4023813F7ED0CB0A.png"><br>解析<br>略<br>※题型：填空题※知识点：填空题※试题难度：较易<br>现有<br>C<br>、<br>H<br>、<br>O<br>、<br>S<br>、<br>Na<br>五种元素,请从中选择适当的元素组成符合下列要求的物质,并将其化学式填写在空格上。<br>1.形成酸雨的氧化物________________;<br>2.天然气的主要成分________________;3.可用作干燥剂的一种碱________________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/c7e39f6d60ba46fcb08cb510a76527af/875BE9D78921027E4041C8F6DB936580.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/ce89790b4a7445bb82f9a09a9de26b2e/3A85E6C88FEA3E414946E54933902EED.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>已知过氧化氢(<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/29/E947C2E36CD3B4692A2CC3A67A71F96C.png"><br>)的构成粒子是分子,由其化学符号可以得到的信息有:<br>1.物质分类:过氧化氢是(填“混合物”或“纯净物”)。<br>2.物质组成:。<br>3.物质构成:。<br>4.分子构成:。<br>5.1个分子构成:。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/6b02834596634b41bfde273105108ca0/96C55D8A0765F748BCEE698EAF6845E5.png"><br>解析<br>略<br>
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