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【04】下册 综合 02 PPT版 (2006版化学《解析与检测》 )

  • 2026-10-30 12:00:27
【04】下册 综合 02 PPT版 (2006版化学《解析与检测》 )
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2026年《解析与检测——化学》
下册 综合测试(二)PPT版
  • 第14题

  • 现有碳酸镁和氢氧化镁的混合物10g, 经测定混合物中镁元素的质量分数为36%, 向其中加入100g溶质质量分数为14.7%的稀硫酸, 恰好完全反应得到不饱和溶液, 将溶液蒸干后得到固体的质量为 (     )

A.12g                B.18g

C.24g                D.36g


    • 解析过程


    • 第19题

    • 乙醇俗称酒精,可用作燃料。乙醇(C2H5OH)完全燃烧的化学方程式为_______________________。丙醇(C3H8O)也可以燃烧,若一定质量的丙醇和12.8g氧气反应,生成CO2、CO和H2O,且CO和H2O的质量比为7:18,则参加反应的丙醇的质量为_____g。

    • 解题思路
    ① 设CO和H2O的质量分别为7m和18m,根据H元素守恒,由的H2O质量求出C3H8O的质量——有关m的代数式(15m);
    ② 根据C元素守恒,由C3H8O质量求出CO2的质量——有关m的代数式(22m);

    ③ 根据质量守恒定律,列出有关m的方程式(15m+12.8g=22m+7m+18m),求出m值;根据m的值,可以求出C3H8O的质量。


    • 解析过程


    • 第20题

    • 已知A、B、C、D、E分别为稀盐酸、氢氧化钠溶液、氢氧化钙溶液、氯化钠溶液、硫酸铜溶液中的某一种,某同学为鉴别这五种溶液所绘制的思维导图如下所示。则C中溶质的化学式为_______;若A能使紫色石蕊溶液变红,则D的名称是_________;若加入的物质X为碳酸钠溶液,则发生反应的化学方程式为____________________________。


    • 解析过程


    • 2026年中招化学实验图示
    2026年化学实验考试(图示详解)【A组】
    2026年化学实验考试(图示详解)【B组】
    • 2026年 化学《解析与检测》PPT合集
    【01】综合测试01 PPT版 (2006版化学《解析与检测》 上册)
    【02】综合测试02 PPT版 (2006版化学《解析与检测》 上册)
    【03】下册 综合 01  PPT版 (2006版化学《解析与检测》 )
    • 2025-2026学年 化学人教版PPT合集
    上册
    九年级化学PPT(人教版2024版 •上册)共37个PPT
    下册
    九年级化学PPT(人教版2024版 •下册)共21个PPT

    【近6年中招真题超详细解析】
    【真题解析-06】2025年化学中招真题超详细解析
    【真题解析-05】2024年化学中招真题超详细解析
    【真题解析-04】2020年化学中招真题超详细解析
    【真题解析-03】2021年化学中招真题超详细解析
    【真题解析-02】2022年化学中招真题超详细解析
    【真题解析-01】2023年化学中招真题超详细解析
    点击下图夸克网盘的链接(永久有效),即可获取近6年中招真题超详细解析课件的PDF版。

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