chemical change的音标是[ˌkemɪkl ˈeɪnʃə] ,基本翻译是化学变化。速记技巧是:chemi-化学,-al形容词后缀,-change动词词性变化。
化学变化的英文词源是化学(chemistry)和变化(change)。化学是指研究物质性质、组成、结构、变化和应用的一门科学。change在这里的意思是改变、变化。
化学变化的形式多种多样,其中一些常见的形式包括:
1. 分解反应(dissociation reaction):指将化合物分解成更简单的组成部分。
2. 合成反应(synthesis reaction):指将简单的物质合成成为复杂的物质。
3. 氧化还原反应(oxidation-reduction reaction):指物质在反应中失去或获得电子的过程,从而改变了它们的化学性质。
相关单词:
1. oxidation(氧化):指物质与氧气发生氧化反应的过程。
2. reduction(还原):指将物质还原为原来的状态或形式。
3. catalyst(催化剂):一种物质在化学反应中可以加速反应过程,但本身在反应后并不发生变化。
4. equilibrium(平衡):指在化学反应中,两种或多种物质达到一种相对稳定的平衡状态。
5. instability(不稳定):指物质在一定条件下容易发生化学变化的性质。
以上就是化学变化的一些相关单词和解释,希望对你有所帮助。
常用短语:
1. chemical reaction
2. chemical synthesis
3. chemical formula
4. chemical compound
5. chemical equation
6. chemical degradation
7. chemical reaction rate
例句:
1. The chemical reaction between the two substances resulted in a change in their properties.
2. The chemical formula for this reaction is C + H2O -> CO + H2.
3. The chemical compound formed during the reaction is unstable and decomposes quickly.
4. The rate of the chemical reaction depends on the temperature and concentration of the reactants.
5. Chemical degradation occurs when a substance is exposed to oxygen and heat, resulting in the formation of acids and other harmful substances.
6. Understanding the chemical reaction rate is crucial for predicting the behavior of chemical processes.
英文小作文:
Chemical Change in Life
Life is full of chemical changes, from the growth of plants to the decay of organic matter. When we eat food, we experience the chemical changes that occur in our bodies as we digest it. The same goes for industrial processes, where chemicals are used to create new materials or to transform one substance into another. Understanding chemical changes is essential for understanding life and the world around us. Without chemical changes, life would be static and unchanging, like a fossilized organism. On the other hand, improper use of chemicals can have negative consequences, so it is important to use them responsibly and safely.