2021届中考化学解题方法突破训练（七）数形结合思想
※题型：单选题※知识点：单选题※试题难度：中等<br>已知:<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/A71D06C8893672EF33AE2EC91CC0F038.png"><br>,如图表示一定质量的<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/1B1732345E93B85DB537C668FAEC6110.png"><br>和<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/C593AB7E8C703062DFA5ED884F267FE4.png"><br>固体混合物受热过程中,某变量<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/C429D2911CF84AE67D53F473595718D0.png"><br>随时间的变化趋势,纵坐标表示的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/1808F4D0DDEA5BECC61B91154235DA41.png"><br>A.固体中氧元素的质量<br>B.生成<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/43916A0CBDACF639905BC5CD89370C97.png"><br>的质量<br>C.固体中<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/24/C593AB7E8C703062DFA5ED884F267FE4.png"><br>的质量<br>D.固体中钾元素的质量<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/0ca1d1c6e53246888f2b4ebacad5d481/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/dd732bfae4784b37b0de123b33afc198/91884FBC387F4C352B74D9ADAEE9C46B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较难<br>下列选项的操作或反应所对应的曲线图正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/26/806215A3226A7E4AB8FA28EABD564E39.jpeg"><br>将饱和石灰水升温<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/26/80C17A5F9B61A5063F883A9F58FDDD2E.jpeg"><br>一定量的锌粉与稀盐酸反应<br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/26/0A7458E6B31C079FDBF19BAE993C66FE.jpeg"><br>等体积、等质量分数的过氧化氢溶液分解<br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/26/045DD6442C59ABDB7EABC3C4A7DBED79.jpeg"><br>向等体积不同质量分数的NaOH溶液中滴加相同质量分数的稀盐酸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/349ad906723c4ddf9d11e6b3f6e383af/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/0e8341a077784168be20fe9a3eb258ac/BD106F73D3E6ACFB8280EB9027F49AA0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列4个坐标图分别表示4个实验过程中某些质量的变化,其中正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/925505B5A4D9A612B1C2B4C1D0B2E42A.png"><br>A.电解水一段时间<br>B.向一定量<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/C33BDE800D867632B103C25FB2DA0A2F.png"><br>中加入稀盐酸<br>C.加热一定量高锰酸钾固体<br>D.向盛有<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/19DB00263A67B64F8C686CD794139E8F.png"><br>的烧杯中加入<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/E947C2E36CD3B4692A2CC3A67A71F96C.png"><br>溶液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/85ceada6e3114705bfc817cfb7825a6c/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/f257f0011cb4488ab3b6851c1cf0e392/C33E549E2761978F63E8E902166D6666.png"><br><br>
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