高考
      • Sharing URL Link copied
      • /edit
      • View mode
        • Edit mode
        • View mode
        • Book mode
        • Slide mode
        Edit mode View mode Book mode Slide mode
      • Customize slides
      • Note Permission
      • Read
        • Owners
        • Signed-in users
        • Everyone
        Owners Signed-in users Everyone
      • Write
        • Owners
        • Signed-in users
        • Everyone
        Owners Signed-in users Everyone
      • Engagement control Commenting, Suggest edit, Emoji Reply
    • Invite by email
      Invitee

      This note has no invitees

    • Publish Note

      Share your work with the world Congratulations! 🎉 Your note is out in the world Publish Note

      Your note will be visible on your profile and discoverable by anyone.
      Your note is now live.
      This note is visible on your profile and discoverable online.
      Everyone on the web can find and read all notes of this public team.
      See published notes
      Unpublish note
      Please check the box to agree to the Community Guidelines.
      View profile
    • Commenting
      Permission
      Disabled Forbidden Owners Signed-in users Everyone
    • Enable
    • Permission
      • Forbidden
      • Owners
      • Signed-in users
      • Everyone
    • Suggest edit
      Permission
      Disabled Forbidden Owners Signed-in users Everyone
    • Enable
    • Permission
      • Forbidden
      • Owners
      • Signed-in users
    • Emoji Reply
    • Enable
    • Versions and GitHub Sync
    • Note settings
    • Note Insights
    • Engagement control
    • Transfer ownership
    • Delete this note
    • Insert from template
    • Import from
      • Dropbox
      • Google Drive
      • Gist
      • Clipboard
    • Export to
      • Dropbox
      • Google Drive
      • Gist
    • Download
      • Markdown
      • HTML
      • Raw HTML
Menu Note settings Versions and GitHub Sync Note Insights Sharing URL Help
Menu
Options
Engagement control Transfer ownership Delete this note
Import from
Dropbox Google Drive Gist Clipboard
Export to
Dropbox Google Drive Gist
Download
Markdown HTML Raw HTML
Back
Sharing URL Link copied
/edit
View mode
  • Edit mode
  • View mode
  • Book mode
  • Slide mode
Edit mode View mode Book mode Slide mode
Customize slides
Note Permission
Read
Owners
  • Owners
  • Signed-in users
  • Everyone
Owners Signed-in users Everyone
Write
Owners
  • Owners
  • Signed-in users
  • Everyone
Owners Signed-in users Everyone
Engagement control Commenting, Suggest edit, Emoji Reply
  • Invite by email
    Invitee

    This note has no invitees

  • Publish Note

    Share your work with the world Congratulations! 🎉 Your note is out in the world Publish Note

    Your note will be visible on your profile and discoverable by anyone.
    Your note is now live.
    This note is visible on your profile and discoverable online.
    Everyone on the web can find and read all notes of this public team.
    See published notes
    Unpublish note
    Please check the box to agree to the Community Guidelines.
    View profile
    Engagement control
    Commenting
    Permission
    Disabled Forbidden Owners Signed-in users Everyone
    Enable
    Permission
    • Forbidden
    • Owners
    • Signed-in users
    • Everyone
    Suggest edit
    Permission
    Disabled Forbidden Owners Signed-in users Everyone
    Enable
    Permission
    • Forbidden
    • Owners
    • Signed-in users
    Emoji Reply
    Enable
    Import from Dropbox Google Drive Gist Clipboard
       owned this note    owned this note      
    Published Linked with GitHub
    Subscribed
    • Any changes
      Be notified of any changes
    • Mention me
      Be notified of mention me
    • Unsubscribe
    Subscribe
    [![hackmd-github-sync-badge](https://hackmd.io/V8NHMZ_ySumslx3BrnyDOg/badge)](https://hackmd.io/V8NHMZ_ySumslx3BrnyDOg) $\require{mhchem}$ # 化学 21.4.29 滚动 ###### tags: `Chemistry` 判断:工业生产玻璃、水泥都需要用石灰石作为原料。 正确。 判断:硫酸铜溶液可用于游泳池消毒是利用了 $\ce{Cu^{2+}}$ 使蛋白质盐析。 错误,是使蛋白质变性。 判断:煤油主要来自煤的干馏。 错误,煤的干馏产生煤焦油。煤油是石油分馏的产物。 油脂属于高分子化合物吗? 不属于。 通过蒸馏从碘的四氯化碳溶液中分离四氯化碳,温度计位置? 支管口处。 判断:除去 $\ce{CO_2}$ 中的 $\ce{HCl}$,可以使用饱和 $\ce{Na2CO3}$ 溶液。 错误,$\ce{Na2CO3}$ 与 $\ce{CO2}$ 反应。 $\ce{Cu}$ 与足量的 $\ce{S}$ 反应产物? $\ce{Cu2S}$ 判断:在米汤中加入食盐,可以检验食盐中是否加碘。 错误,加碘指的是加碘元素而非碘单质。 判断:$\ce{CH_3OH + LiI -> CH3I + LiOH}$ 的反应类型和 $\ce{LiOH + HI -> LiI + H2O}$ 相同。 错误,一个是取代反应,一个是置换反应。 --- 3\. 用下列装置进行实验,仪器选择正确且能达到实验目的的是 ![4hq9x8t8.png](https://cdn.jsdelivr.net/gh/fei0319/pic/img/4hq9x8t8.png) A. 用甲装置测定 $\ce{Fe^{2+}}$ 的浓度 错误。应当使用酸式滴定管。 B. 用乙装置从碘的 $\ce{CCl4}$ 溶液中分离并回收 $\ce{CCl4}$ 错误。温度计水银球应在支管口处。 C. 用丙装置合成氨并检验氨的存在 错误。应使用湿润的 PH 试纸。 D. 用丁装置进行铁与水蒸气的反应,点燃肥皂泡检验氢气 正确。 --- 9\. 化合物甲是一种常见无机物,其结构如下图所示(图中的“—”为单键或双键),其中 W、X、Y、Z 为元素周期表中的短周期主族元素,且原子序数依次增大,W 和 Y、X 和 Z 分别为同主族元素,其四种元素原子的最外层电子数之和为14。下列叙述正确的是 ![jsabrxe3w7.png](https://cdn.jsdelivr.net/gh/fei0319/pic/img/jsabrxe3w7.png) 由 Y 呈正一价可知 Y 和 W 均为 IA 族元素。故 Y 为 $\ce{Na}$,W 为 $\ce{H}$。由于四种元素原子的最外层电子数之和为14,可知 X 和 Z 分别为 $\ce{O}$ 和 $\ce{S}$。 A. W 分别与 X、Z 形成的简单分子均为 10 电子微粒 错误。硫化氢含有 18 电子微粒。 B. X、Y 形成的离子化合物只含离子键 错误。过氧化钠中的过氧键为共价键。 C. X、Y、Z 三种元素的简单离子半径大小顺序为 Z>X>Y 正确。 D. 等物质的量的 Y 和 Z 的最高价氧化物对应的水化物反应生成甲 错误。等物质的量的 $\ce{NaOH}$ 和 $\ce{H2SO4}$ 反应生成 $\ce{NaHSO4}$。

    Import from clipboard

    Paste your markdown or webpage here...

    Advanced permission required

    Your current role can only read. Ask the system administrator to acquire write and comment permission.

    This team is disabled

    Sorry, this team is disabled. You can't edit this note.

    This note is locked

    Sorry, only owner can edit this note.

    Reach the limit

    Sorry, you've reached the max length this note can be.
    Please reduce the content or divide it to more notes, thank you!

    Import from Gist

    Import from Snippet

    or

    Export to Snippet

    Are you sure?

    Do you really want to delete this note?
    All users will lose their connection.

    Create a note from template

    Create a note from template

    Oops...
    This template has been removed or transferred.
    Upgrade
    All
    • All
    • Team
    No template.

    Create a template

    Upgrade

    Delete template

    Do you really want to delete this template?
    Turn this template into a regular note and keep its content, versions, and comments.

    This page need refresh

    You have an incompatible client version.
    Refresh to update.
    New version available!
    See releases notes here
    Refresh to enjoy new features.
    Your user state has changed.
    Refresh to load new user state.

    Sign in

    Forgot password

    or

    By clicking below, you agree to our terms of service.

    Sign in via Facebook Sign in via Twitter Sign in via GitHub Sign in via Dropbox Sign in with Wallet
    Wallet ( )
    Connect another wallet

    New to HackMD? Sign up

    Help

    • English
    • 中文
    • Français
    • Deutsch
    • 日本語
    • Español
    • Català
    • Ελληνικά
    • Português
    • italiano
    • Türkçe
    • Русский
    • Nederlands
    • hrvatski jezik
    • język polski
    • Українська
    • हिन्दी
    • svenska
    • Esperanto
    • dansk

    Documents

    Help & Tutorial

    How to use Book mode

    Slide Example

    API Docs

    Edit in VSCode

    Install browser extension

    Contacts

    Feedback

    Discord

    Send us email

    Resources

    Releases

    Pricing

    Blog

    Policy

    Terms

    Privacy

    Cheatsheet

    Syntax Example Reference
    # Header Header 基本排版
    - Unordered List
    • Unordered List
    1. Ordered List
    1. Ordered List
    - [ ] Todo List
    • Todo List
    > Blockquote
    Blockquote
    **Bold font** Bold font
    *Italics font* Italics font
    ~~Strikethrough~~ Strikethrough
    19^th^ 19th
    H~2~O H2O
    ++Inserted text++ Inserted text
    ==Marked text== Marked text
    [link text](https:// "title") Link
    ![image alt](https:// "title") Image
    `Code` Code 在筆記中貼入程式碼
    ```javascript
    var i = 0;
    ```
    var i = 0;
    :smile: :smile: Emoji list
    {%youtube youtube_id %} Externals
    $L^aT_eX$ LaTeX
    :::info
    This is a alert area.
    :::

    This is a alert area.

    Versions and GitHub Sync
    Get Full History Access

    • Edit version name
    • Delete

    revision author avatar     named on  

    More Less

    Note content is identical to the latest version.
    Compare
      Choose a version
      No search result
      Version not found
    Sign in to link this note to GitHub
    Learn more
    This note is not linked with GitHub
     

    Feedback

    Submission failed, please try again

    Thanks for your support.

    On a scale of 0-10, how likely is it that you would recommend HackMD to your friends, family or business associates?

    Please give us some advice and help us improve HackMD.

     

    Thanks for your feedback

    Remove version name

    Do you want to remove this version name and description?

    Transfer ownership

    Transfer to
      Warning: is a public team. If you transfer note to this team, everyone on the web can find and read this note.

        Link with GitHub

        Please authorize HackMD on GitHub
        • Please sign in to GitHub and install the HackMD app on your GitHub repo.
        • HackMD links with GitHub through a GitHub App. You can choose which repo to install our App.
        Learn more  Sign in to GitHub

        Push the note to GitHub Push to GitHub Pull a file from GitHub

          Authorize again
         

        Choose which file to push to

        Select repo
        Refresh Authorize more repos
        Select branch
        Select file
        Select branch
        Choose version(s) to push
        • Save a new version and push
        • Choose from existing versions
        Include title and tags
        Available push count

        Pull from GitHub

         
        File from GitHub
        File from HackMD

        GitHub Link Settings

        File linked

        Linked by
        File path
        Last synced branch
        Available push count

        Danger Zone

        Unlink
        You will no longer receive notification when GitHub file changes after unlink.

        Syncing

        Push failed

        Push successfully