chemical constitution

简明释义

化学结构

英英释义

例句

1.Understanding the chemical constitution 化学成分 of a material is crucial for its application in engineering.

理解材料的化学成分对于其在工程中的应用至关重要。

2.Researchers are examining the chemical constitution 化学成分 of pollutants in the water supply.

研究人员正在检查水供应中污染物的化学成分。

3.The study of the chemical constitution 化学成分 of various compounds can lead to new discoveries in drug development.

对各种化合物的化学成分的研究可以导致药物开发的新发现。

4.A thorough analysis of the chemical constitution 化学成分 of soil is necessary for effective agriculture.

对土壤的化学成分进行彻底分析是有效农业所必需的。

5.The chemical constitution 化学成分 of food products can impact their nutritional value significantly.

食品产品的化学成分可能会显著影响其营养价值。

作文

The study of materials and their properties is fundamental to the field of chemistry. One of the key concepts that chemists must grasp is the idea of chemical constitution, which refers to the arrangement and types of atoms in a molecule, as well as the bonds that hold them together. Understanding chemical constitution is essential for predicting how substances will react with one another and for determining their physical and chemical properties. For instance, the chemical constitution of water (H2O) reveals that it is composed of two hydrogen atoms covalently bonded to one oxygen atom. This simple structure leads to unique properties such as high surface tension and the ability to dissolve many substances, which are crucial for life on Earth.In organic chemistry, the chemical constitution of compounds can vary greatly, leading to a wide range of functionalities and reactivities. For example, the difference between ethanol (C2H5OH) and dimethyl ether (C2H6O) lies in their chemical constitution: ethanol has an -OH group (hydroxyl), making it an alcohol, while dimethyl ether has an -O- linkage, classifying it as an ether. This difference in chemical constitution results in distinct physical properties, such as boiling points and solubility in water.Moreover, understanding the chemical constitution is vital in fields such as pharmacology, where the effectiveness of a drug often hinges on its molecular structure. The chemical constitution of a pharmaceutical compound can determine how well it binds to its target, how it is metabolized in the body, and what side effects it may cause. For instance, the chemical constitution of aspirin (acetylsalicylic acid) allows it to inhibit certain enzymes involved in inflammation and pain signaling, making it an effective analgesic.In materials science, the chemical constitution of substances plays a crucial role in developing new materials with tailored properties. For example, by altering the chemical constitution of polymers, scientists can create materials that are more durable, flexible, or resistant to heat. This ability to manipulate chemical constitution opens up possibilities for innovations in technology, such as lightweight composites for aerospace applications or biodegradable plastics to reduce environmental impact.Furthermore, advances in analytical techniques have allowed researchers to investigate the chemical constitution of complex mixtures, such as those found in natural products or environmental samples. Techniques like mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy enable chemists to deduce the chemical constitution of unknown compounds, leading to discoveries of new drugs, flavors, or fragrances.In conclusion, the concept of chemical constitution is a cornerstone of chemistry that influences various scientific disciplines. Whether in understanding basic chemical reactions, developing new pharmaceuticals, or creating innovative materials, the chemical constitution provides insights into the behavior and characteristics of substances. As our knowledge of chemical constitution continues to grow, so too does our ability to harness the power of chemistry to improve our world.

材料及其性质的研究是化学领域的基础。化学家必须掌握的一个关键概念是化学组成，它指的是分子中原子的排列和类型，以及将它们结合在一起的键。理解化学组成对于预测物质之间的反应以及确定它们的物理和化学性质至关重要。例如，水（H2O）的化学组成揭示它由两个氢原子与一个氧原子共价结合而成。这种简单的结构导致了独特的性质，如高表面张力和溶解许多物质的能力，这对地球上的生命至关重要。在有机化学中，化合物的化学组成可能有很大差异，从而导致广泛的功能性和反应性。例如，乙醇（C2H5OH）和二甲醚（C2H6O）之间的区别在于它们的化学组成：乙醇具有一个-OH基团（羟基），使其成为一种醇，而二甲醚则具有-O-连接，将其归类为醚。这种化学组成的差异导致了明显不同的物理性质，例如沸点和在水中的溶解度。此外，理解化学组成在药理学等领域至关重要，药物的有效性往往取决于其分子结构。药物化合物的化学组成可以决定它与靶标的结合效果、在体内的代谢方式以及可能引起的副作用。例如，阿司匹林（乙酰水杨酸）的化学组成使其能够抑制与炎症和疼痛信号相关的某些酶，从而使其成为一种有效的镇痛药。在材料科学中，物质的化学组成在开发具有定制属性的新材料时发挥着关键作用。例如，通过改变聚合物的化学组成，科学家可以创造出更耐用、更灵活或更耐热的材料。这种操控化学组成的能力为技术创新开辟了可能性，例如用于航空航天应用的轻量复合材料或减少环境影响的生物降解塑料。此外，分析技术的进步使研究人员能够调查复杂混合物的化学组成，例如天然产物或环境样品中发现的那些。质谱法和核磁共振（NMR）光谱等技术使化学家能够推断未知化合物的化学组成，从而发现新药物、香料或香水。总之，化学组成的概念是化学的基石，影响着各种科学学科。无论是在理解基本化学反应、开发新药物还是创造创新材料方面，化学组成都为物质的行为和特性提供了深刻的见解。随着我们对化学组成的认识不断增长，我们利用化学的力量改善世界的能力也在不断增强。