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相关概念视频

Chemical Reactions01:19

Chemical Reactions

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A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
Chemical Reactions Rearrange Atoms into New Substances
A chemical reaction takes starting materials—the reactants—and changes them...
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Chemical Equations03:10

Chemical Equations

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Chemical equations represent the identities and relative quantities of substances involved in a chemical reaction. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation. Plus signs (+) separate individual reactant and product formulas, and an arrow (→) separates the reactant and product (left and...
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Introduction to Chemical Reactions01:23

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All chemical reactions begin with a reactant, the general term for one or more substances entering the reaction. Sodium and chloride ions, for example, are the reactants in the production of table salt. One or more substances produced by a chemical reaction are called the product. Chemical reactions follow the law of conservation of mass, which means that matter cannot be created nor destroyed in a chemical reaction. The components of the reactants—the number of atoms and the...
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What is Organic Chemistry?02:17

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Organic chemistry is the study of compounds of carbon called organic compounds. Organic compounds either originate from living organisms or are synthesized by chemists. A defining trait of these compounds is the presence of carbon as the principal element, which is bonded to other carbon atoms and other elements such as hydrogen, oxygen, nitrogen, and sulfur. The existence of a wide array of organic molecules is a consequence of carbon atoms’ ability to form up to four strong bonds to...
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Balancing Redox Equations02:58

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Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
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Chemical Reactions in Aqueous Solutions03:03

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Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
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Updated: Jul 9, 2025

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
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你会说化学吗? 你会说化学吗?

Antonio Togni1

  • 1Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland. atogni@ethz.ch.

Chimia
|December 4, 2023
PubMed
概括
此摘要是机器生成的。

这篇文章探讨了化学的语言,重点是约翰斯通三角形,命名法,纯物质和结构公式. 它强调结构公式作为一个关键的表示,并介绍了柏拉图固体的化学转写.

关键词:
约翰斯通的三角形 约翰斯通的三角形柏拉图式固体是一种固体.纯粹的物质是一种纯粹的物质.结构公式 结构公式系统的命名法 系统的命名法

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科学领域:

  • 化学教育的化学教育.
  • 化学的哲学 化学的哲学

背景情况:

  • 几十年的化学研究和教学经验.
  • 语言和表示在理解化学中的重要性.

研究的目的:

  • 为了反思化学的多面语言.
  • 讨论关键概念:约翰斯通三角,命名法,纯物质和结构公式.
  • 为了介绍一个独特的化学表征:翻译柏拉图的固体.

主要方法:

  • 基于广泛的研究和教学经验的个人反思.
  • 分析基本的化学概念和表示工具.
  • 探索新的表示方法.

主要成果:

  • 约翰斯通三角形为化学思想提供了三个层次.
  • 系统的命名要求进行批判性评价.
  • 纯物质的概念是化学理解的核心.
  • 结构公式是化学中最重要的表示形式.
  • 柏拉图固体的化学转写提供了一个独特的表达工具.

结论:

  • 在化学中有效的沟通依赖于理解其独特的语言.
  • 结构公式对于表示化学实体是不可或缺的.
  • 像化学翻译这样的小说表示可以增强化学表达.