（12）化学反应的表示—2021-2022学年化学鲁教版（五四制）八年级全一册同步课时作业
※题型：单选题※知识点：单选题※试题难度：较易<br>下列有关化学方程式<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/23/25C0B393D8EE4C0613ECE6FDAE43FCCE.png"><br>的叙述不正确的是( )<br>A.该式子不仅表示反应物为碳和氧气,还表示生成物为二氧化碳<br>B.该式子表示各反应物和生成物的粒子相对数量关系为1:1:1<br>C.由该式子可知反应条件为点燃<br>D.该式子表示反应时生成无色无味的气体<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/fa45797d35374605a0c2bcbaa5865b5c/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/12eb8bc66030484ea23d98f32c95a9a9/60471155B20761F8049F35D46C4ED958.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>镁条在氧气中燃烧的化学反应可用“<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/10/55646D71767F05073C931D2A603B6275.png"><br>”来表示。以下信息:①反应条件,②反应速率,③反应物、生成物各物质间的质量关系,④反应的微观过程,⑤反应过程中的能量变化,⑥反应体系中微观粒子的数量关系。能从上述化学方程式中获得的是( )<br>A.①③④ B.②③⑤ C.①③⑥ D.②④⑥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/fff71a974a30465e87ed9bb1672eff24/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/6f03e14e0df14caf9158be984224c3c8/7DA3EF2B2393ADA0E35CC8329A3C2C15.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在化学方程式<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/83E734A9D7C2A671052265D80D3340CF.png"><br>中,各化学式前的化学计量数之间的关系正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/E15AE9108F318CF3E1786E04DC5BA7D3.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/3BB1FE3B7E9ECF0508DDCE010E080EA2.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/6CEB92BC27B94DE1787BBADA6C1C68B2.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/26/47BF2CF8AB0EBD329B330FEF27348876.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/b26ef32149c74121bea7acfefff2255b/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/fc788d8b364a4afc8d05a8dd669b811c/1668F2B4FE7090BB5B2C9CF27DAFCFFF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>生石灰吸收二氧化硫的化学方程式为<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/19/899928866F877DC5F1B6207E2A434076.png"><br>,则<br>m<br>的值是( )<br>A.4 B.3 C.2 D.1<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/15afd1e0d3114bbc9b960768eb7537cd/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/0be2ec4e6ea74c69b08a3cbc9f1bcbb0/3200C59A482ACF906C0AF9E1884B64EF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>对于化学方程式<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/23/A3C939C0265EF8FF5E181580CE79C718.png"><br>的意义叙述正确的是( )<br>A.氢气加氧气点燃等于水<br>B.两个氢气和一个氧气点燃生成两个水<br>C.每4份质量的氢气和32份质量的氧气点燃生成36份质量的水<br>D.32g氢气和4g氧气点燃生成36g水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/0d765711fb2a490da9618e53522307e7/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/5dcc06ae51494294831b2db2a286d6fb/A2C0D90919A79B1E39A7D30C8BA4AACA.png"><br><br>※题型：填空题※知识点：填空题※试题难度：容易<br>书写化学方程式要遵守两条原则:一是要以<br>为基础;二是要遵守<br>,要使反应前后各原子的<br>与<br>保持不变。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/237059c50bdf466cacf9ca016badd343/36AD823339788561A403D5B8B4FE0DCE.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>化学方程式是重要的化学用语,观察化学方程式可得到很多信息。请你根据化学方程式:<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/19/C79A490A08BC9B836924FFD5A7AA5E9C.png"><br>写出你得到的三点信息<br>(<br>)<br>_<br>________<br>(<br>)<br>_<br>________<br>(<br>)<br>_<br>________<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/2faa816c2cbb4b2a9a34d9ad41de52c0/8E728705B004B309085B20F6EAAC9D88.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/f1ac5acc506a4fc999750247dca9b320/A132A7817506E36A4EFA4C85829FF2DE.png"><br><br>※题型：填空题※知识点：填空题※试题难度：较易<br>配平下列化学方程式(化学计量数为<br>也要填入“□”内)。<br>(<br>)<br>□<br>P<br>+<br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/CE3FB2E68B350B28E5B76D176FE3FE33.png"><br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/06C0DB4CE443906C590DAD56AFBB6951.png"><br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/7A2C4E56C42DFC25BA00B33A110CF33C.png"><br>(<br>)□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/81E02897460BEC9D2C34F1614A4CC31C.png"><br>+<br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/2CBB448EAD137249D1A104A8A6DDA071.png"><br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/783855F242C055F0DA88CD1DA5F47442.png"><br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/2E2BEF088B6E805222DC0CB3F551C5A7.png"><br>+<br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/3AB34B1B8224706C6E4369A324ED490A.png"><br>(<br>)□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/937FDA011D046B8F739CA0856671E520.png"><br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/23F174E4438FAA66347C26E37B528180.png"><br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/BF45A0427DE59E00361E360257DB793E.png"><br>+<br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/F524C1A0FEF3A6B9679F9089BD5ED50D.png"><br>(<br>)□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/67B6F15CA8F50C3E432514CB3244B96B.png"><br>+<br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/CE3FB2E68B350B28E5B76D176FE3FE33.png"><br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/06C0DB4CE443906C590DAD56AFBB6951.png"><br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/EC3292BA20EA95699E445A75CBF39462.png"><br>+<br>□<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/3AB34B1B8224706C6E4369A324ED490A.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/31b025d5b2e44f17a7a2a03d1d4ecd01/7C5DC6176AD0A61B29DDC79FA4DA5C20.png"><br>解析<br>略<br>
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