cation

简明释义

英[ˈkætaɪən]美[ˈkætaɪən]

n. （化）正离子，阳离子

【名】 （Cation）凯申（人名）； （Cation）（英）凯申（人名）

英英释义

单词用法

同义词

反义词

例句

1.Cowpea crossbreeding has the problem that fructify cation is low according to the traditional method.

豇豆杂交育种按照传统的方法存在坐果率低的问题。

2.The 2-norbornyl cation has been made from a variety of norbornane derivatives and reagents.

2-降冰片基阳离子已经由多种降冰片烷衍生物和试剂制成。

3.We've seen so far that we can have a neutral plus neutral sodium plus chlorine goes to cation plus anion.

到目前为止，我们得到了一个不带电的加一个不带电的，即钠加上氯，得到阳离子加阴离子。

4.The effect of ion pair increases with increasing the concentration of cation.

离子对效应随阳离子浓度增加而增大。

5.The cation penetrates the spore.

这种阳离子能透入孢子。

6.Droplet test and conductivity characterizes cation of the type of emulsion.

小滴测试和传导率描述了乳剂类型的阳离子特征。

7.Where are you going for va cation ? I'm going to Hawaii for vacation .

你打算去哪度假？我打算去夏威夷度假。

8.Catastrophe is a downturn. So that is the cation.

灾难表示衰退，所以那就是正离子。

9.In electrochemistry, cations (阳离子) migrate towards the cathode during an electrolysis process.

在电化学中，阳离子（阳离子）在电解过程中向阴极迁移。

10.The presence of a cation (阳离子) can significantly affect the pH level of a solution.

一个阳离子（阳离子）的存在可以显著影响溶液的pH值。

11.Calcium is an important cation (阳离子) in the human body, playing a key role in bone health.

钙是人体内一种重要的阳离子（阳离子），在骨骼健康中发挥着关键作用。

12.When dissolved in water, magnesium forms a cation (阳离子) which is essential for many biological processes.

当溶解在水中时，镁形成一个阳离子（阳离子），这对许多生物过程至关重要。

13.In a saltwater solution, the sodium ion acts as a cation (阳离子) that helps conduct electricity.

在盐水溶液中，钠离子作为一个阳离子（阳离子）有助于导电。

作文

In the world of chemistry, understanding different types of ions is essential for grasping the fundamental principles that govern chemical reactions. One such type of ion is the cation, which plays a crucial role in various chemical processes. A cation is defined as a positively charged ion that is formed when an atom loses one or more electrons. This loss of electrons results in a net positive charge, making cations important in the formation of ionic bonds and in conducting electricity in solutions.The significance of cations can be observed in everyday life. For instance, when table salt (sodium chloride) dissolves in water, it separates into its constituent ions: sodium ions (Na+) and chloride ions (Cl-). In this scenario, the sodium ion is a cation, while the chloride ion is an anion, which is negatively charged. This interaction between cations and anions is fundamental to the concept of ionic compounds, where the electrostatic forces between oppositely charged ions result in stable structures.Moreover, cations are not only important in inorganic chemistry but also play a significant role in biological systems. For example, in human physiology, cations such as sodium (Na+), potassium (K+), and calcium (Ca2+) are vital for numerous cellular functions. These cations help regulate nerve impulses, muscle contractions, and fluid balance within cells. The movement of these cations across cell membranes is essential for maintaining homeostasis and ensuring that biological processes function correctly.The study of cations extends beyond just their roles in chemistry and biology; it also has practical applications in various industries. In agriculture, for instance, understanding soil cation exchange capacity is crucial for determining soil fertility. Soils rich in cations can hold onto nutrients more effectively, thereby supporting plant growth. Farmers often test soil samples to analyze the concentration of different cations and adjust their fertilization practices accordingly to enhance crop yields.Additionally, cations are involved in many industrial processes, including electroplating, battery production, and water treatment. In electroplating, cations from a metal solution are deposited onto a surface to create a thin layer of metal, enhancing both aesthetics and corrosion resistance. In batteries, cations facilitate the flow of electric current, which is essential for the functioning of devices we use every day.In conclusion, cations are not just abstract concepts confined to textbooks; they are integral components of both the natural world and various technological applications. By understanding the properties and behaviors of cations, we can gain insights into chemical interactions, biological functions, and even agricultural practices. As we continue to explore the complexities of chemistry, the role of cations will undoubtedly remain a topic of great importance and interest. Therefore, further research and education on cations will enhance our comprehension of the intricate relationships that exist within the universe around us.

在化学的世界中，理解不同类型的离子对于掌握支配化学反应的基本原理至关重要。其中一种离子是阳离子，它在各种化学过程中发挥着关键作用。阳离子被定义为一种带正电的离子，它是在原子失去一个或多个电子时形成的。这种电子的丧失导致净正电荷，使得阳离子在离子键的形成和溶液中导电方面变得重要。阳离子的重要性可以在日常生活中观察到。例如，当食盐（氯化钠）溶解在水中时，它会分解成其组成离子：钠离子（Na+）和氯离子（Cl-）。在这种情况下，钠离子是一个阳离子，而氯离子是一个阴离子，它带有负电荷。阳离子和阴离子之间的相互作用是离子化合物概念的基础，其中相反电荷离子之间的静电力导致稳定结构的形成。此外，阳离子不仅在无机化学中重要，还在生物系统中发挥着重要作用。例如，在人体生理中，钠（Na+）、钾（K+）和钙（Ca2+）等阳离子对许多细胞功能至关重要。这些阳离子帮助调节神经冲动、肌肉收缩和细胞内的液体平衡。这些阳离子在细胞膜上的移动对于维持体内平衡和确保生物过程正常运作至关重要。对阳离子的研究不仅限于它们在化学和生物学中的角色；它还在各个行业中具有实际应用。例如，在农业中，了解土壤的阳离子交换能力对于确定土壤肥力至关重要。富含阳离子的土壤可以更有效地保持养分，从而支持植物生长。农民通常会测试土壤样本，以分析不同阳离子的浓度，并相应调整施肥实践，以提高作物产量。此外，阳离子参与许多工业过程，包括电镀、电池生产和水处理。在电镀中，金属溶液中的阳离子被沉积到表面上，以形成一层薄薄的金属，提高美观性和抗腐蚀性。在电池中，阳离子促进电流的流动，这对于我们每天使用的设备的功能至关重要。总之，阳离子不仅仅是教科书中抽象的概念；它们是自然界和各种技术应用中不可或缺的组成部分。通过理解阳离子的性质和行为，我们可以深入了解化学相互作用、生物功能，甚至农业实践。随着我们继续探索化学的复杂性，阳离子的角色无疑将继续成为一个重要和有趣的话题。因此，进一步研究和教育阳离子将增强我们对宇宙中存在的复杂关系的理解。