acid

简明释义

[ˈæsɪd][ˈæsɪd]

n. 酸;<非正式>迷幻药;尖刻(或尖酸)的言语(或语调);质子供体,电子对受体

adj. 酸的;酸性的;尖酸的,刻薄的;(颜色)刺目的,鲜亮的;(岩石,尤指熔岩)含相当量硅石的

复 数 a c i d s

比 较 级 m o r e a c i d

最 高 级 m o s t a c i d

英英释义

A substance that increases the hydrogen ion concentration in a solution.

一种在溶液中增加氢离子浓度的物质。

A sour-tasting liquid, often used in chemistry and can react with bases to form salts.

一种酸味的液体,常用于化学,可以与碱反应形成盐。

In a broader context, it can refer to a corrosive or caustic substance.

在更广泛的上下文中,它可以指一种腐蚀性或烧灼性的物质。

单词用法

amino acid

n. [化]氨基酸

acetic acid

[化]醋酸,乙酸

同义词

sour

The lemon has a sour taste.

柠檬有一种酸味。

tart

酸的,尖酸的

The tart flavor of the green apple is refreshing.

青苹果的酸味令人耳目一新。

caustic

腐蚀性的

The caustic chemical can burn skin.

这种腐蚀性化学品可能会烧伤皮肤。

bitter

苦的

The dark chocolate has a bitter aftertaste.

黑巧克力有一种苦涩的余味。

反义词

alkaline

碱性

The solution is alkaline, which means it has a pH greater than 7.

这个溶液是碱性的,意味着它的pH值大于7。

base

Bases can neutralize acids in chemical reactions.

碱可以在化学反应中中和酸。

例句

1.Rye is tolerant of poor, acid soils.

黑麦耐贫瘠的酸性土壤。

2.Iron and folic acid supplements are frequently given to pregnant women.

铁和叶酸补充剂常给孕妇服用。

3.Carbolic acid is usually used for cleaning.

石炭酸常用于清洁。

4.This is significant, because the amino acid sequence of an enzyme is determined by genes.

这很重要,因为酶的氨基酸序列是由基因决定的。

5.Large quantities of nitric acid were produced.

大量的硝酸产生了。

6.The organic litter of another tree species might add less acid but more of something else.

另一种树种的有机凋落物可能不会添加这么多酸,但会添加较多的其他物质。

7.Antacids are alkaline and they relieve pain by neutralizing acid in the contents of the stomach.

抗酸剂是碱性的,它们通过中和胃容物中的酸来缓解疼痛。

8.Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.

研究这种药草的农学家发现,它会产生大量的组氨酸,这种氨基酸在试管溶液中会使这些金属具有化学惰性。

9.Sulphur dioxide is a pollutant and a major contributor to acid rain.

二氧化硫是一种污染物,并且是形成酸雨的主要因素。

10.After eating too many sweets, he felt a burning sensation due to stomach acid ().

吃了太多甜食后,他感到胃酸带来的灼烧感。

11.Vinegar is a common household item that contains acetic acid ().

醋是一种常见的家庭用品,含有醋酸。

12.The scientist conducted an experiment using sulfuric acid () to test the reaction.

科学家使用硫酸进行实验,以测试反应。

13.Lemon juice contains citric acid (), which gives it a sour taste.

柠檬汁含有柠檬酸,这使得它有酸味。

14.The battery is filled with a strong acid () that helps generate electricity.

电池里充满了强酸,帮助产生电力。

作文

The concept of acid () is fundamental in both chemistry and everyday life. Acids are substances that can donate protons or accept electrons, and they play a crucial role in various chemical reactions. In our daily lives, we encounter acids in many forms, from the citric acid in lemons to the acetic acid in vinegar. Understanding acids helps us appreciate their importance not just in scientific contexts but also in culinary practices and even in our own bodies.In the kitchen, acids are often used to enhance flavors. For example, adding lemon juice, which contains acid (), can brighten up a dish and provide a refreshing contrast to rich flavors. Similarly, vinegar, which is primarily composed of acetic acid (), is a staple in salad dressings and marinades. The tangy taste of these acids () can transform a bland meal into something vibrant and exciting.Beyond cooking, acids are also essential in the human body. Our stomachs produce hydrochloric acid (盐酸) to aid in digestion. This strong acid () breaks down food and helps kill harmful bacteria that may enter our system. Without this natural acid (), our digestive processes would be severely hindered, leading to various health issues.In the realm of science, understanding the properties of acids () is vital for conducting experiments and developing new materials. Acids can react with bases in a neutralization reaction, producing water and salts. This reaction is not only important in laboratories but also has real-world applications, such as in the production of fertilizers and pharmaceuticals. For instance, sulfuric acid (硫酸) is one of the most widely used industrial chemicals, playing a key role in the manufacture of batteries and cleaning agents.Moreover, the study of acids () extends to environmental science. Acid rain, which results from sulfur dioxide and nitrogen oxides reacting with water vapor in the atmosphere, poses significant threats to ecosystems. It can lead to the acidification of lakes and streams, harming aquatic life and disrupting food chains. Understanding the chemistry behind acids () enables scientists to devise strategies to combat pollution and protect our environment.In conclusion, the term acid () encompasses a wide range of substances that are integral to both nature and human activities. From enhancing the flavors of our food to playing critical roles in biological and industrial processes, acids () are everywhere. By deepening our understanding of acids (), we can better appreciate their significance and the impact they have on our lives and the world around us.

“酸”这个概念在化学和日常生活中都是基础性的。酸是指能够捐赠质子或接受电子的物质,它们在各种化学反应中扮演着至关重要的角色。在我们的日常生活中,我们以多种形式遇到酸,从柠檬中的柠檬酸到醋中的醋酸。理解酸有助于我们欣赏它们的重要性,不仅在科学背景下,也在烹饪实践甚至我们自己的身体中。在厨房里,酸通常用于增强食物的味道。例如,加入含有)的柠檬汁可以使菜肴更加明亮,并为丰富的味道提供清新的对比。同样,醋主要由醋酸组成,是沙拉酱和腌料中的主食。这些)的酸味可以将平淡的餐点转变为生动而令人兴奋的美食。除了烹饪,酸在人体中也至关重要。我们的胃产生盐酸来帮助消化。这种强酸()分解食物并帮助杀死可能进入我们体内的有害细菌。没有这种自然的),我们的消化过程将受到严重阻碍,导致各种健康问题。在科学领域,理解)的性质对于进行实验和开发新材料至关重要。酸可以与碱发生中和反应,生成水和盐。这种反应不仅在实验室中重要,而且在现实世界中也有应用,例如在化肥和制药的生产中。例如,硫酸是使用最广泛的工业化学品之一,在电池和清洁剂的制造中发挥着关键作用。此外,酸的研究还扩展到环境科学。酸雨是由于二氧化硫和氮氧化物与大气中的水蒸气反应而产生的,对生态系统构成重大威胁。它会导致湖泊和溪流的酸化,危害水生生物并破坏食物链。理解)背后的化学原理使科学家能够制定策略来对抗污染并保护我们的环境。总之,术语)涵盖了广泛的物质,这些物质对自然和人类活动至关重要。从增强我们食物的味道到在生物和工业过程中发挥关键作用,)无处不在。通过加深对)的理解,我们可以更好地欣赏它们的重要性以及它们对我们的生活和周围世界的影响。