chemical compound

简明释义

化合物

英英释义

例句

1.Water is a simple chemical compound that consists of two hydrogen atoms and one oxygen atom.

水是一种简单的化合物，由两个氢原子和一个氧原子组成。

2.Table salt is a chemical compound formed from sodium and chlorine.

食盐是一种由钠和氯形成的化合物。

3.Acetic acid is the chemical compound that gives vinegar its sour taste.

醋酸是使醋具有酸味的化合物。

4.Baking soda is a common chemical compound used in baking.

小苏打是一种常见的用于烘焙的化合物。

5.The chemical compound known as carbon dioxide is produced during respiration.

二氧化碳这种化合物在呼吸过程中产生。

作文

A chemical compound is a substance formed when two or more elements are chemically bonded together. These compounds have distinct properties that are different from the individual elements that create them. For example, when hydrogen and oxygen combine, they form water, a chemical compound essential for life. The study of chemical compounds is fundamental in chemistry, as it helps us understand the interactions and reactions that occur in the natural world.The classification of chemical compounds can be divided into two main categories: ionic compounds and covalent compounds. Ionic compounds are formed when electrons are transferred from one atom to another, resulting in charged ions that attract each other. A common example of an ionic compound is sodium chloride (table salt), which consists of sodium ions and chloride ions.On the other hand, covalent compounds are formed when atoms share electrons. This sharing creates a strong bond between the atoms, resulting in a stable chemical compound. An example of a covalent compound is carbon dioxide, where one carbon atom shares electrons with two oxygen atoms.Understanding the structure of chemical compounds is crucial for predicting their behavior in chemical reactions. The arrangement of atoms within a chemical compound determines its properties, such as boiling point, melting point, and solubility. For instance, the difference in properties between diamond and graphite is due to the different arrangements of carbon atoms in these two chemical compounds. While diamond is hard and transparent, graphite is soft and opaque.In addition to their structural differences, chemical compounds can also exhibit various types of bonding, including polar and nonpolar bonds. Polar bonds occur when there is an unequal sharing of electrons between atoms, leading to a molecule with a slight electric charge. Water is an excellent example of a polar chemical compound, as the oxygen atom pulls electrons closer than the hydrogen atoms, creating a dipole moment.Nonpolar bonds, on the other hand, occur when electrons are shared equally between atoms. Molecules like methane are considered nonpolar chemical compounds because the carbon and hydrogen atoms share electrons evenly, resulting in a balanced charge distribution.The significance of chemical compounds extends beyond academic study; they play vital roles in various industries, including pharmaceuticals, agriculture, and materials science. For instance, understanding the properties of chemical compounds allows chemists to develop new medications that can effectively target diseases. Similarly, in agriculture, the knowledge of chemical compounds helps in creating fertilizers that enhance crop yield.In conclusion, a chemical compound is not just a collection of elements but a complex entity with unique properties and behaviors. By studying chemical compounds, we gain insights into the fundamental principles of chemistry and their applications in our daily lives. Whether in the laboratory or in nature, chemical compounds are everywhere, influencing everything from the air we breathe to the food we eat. Understanding them is essential for anyone interested in the sciences, as they form the building blocks of matter and are integral to the world around us.

化合物是由两个或多个元素通过化学键结合而形成的物质。这些化合物具有与构成它们的单个元素不同的独特性质。例如，当氢和氧结合时，它们形成水，这是一种对生命至关重要的化合物。对化合物的研究是化学的基础，因为它帮助我们理解自然界中发生的相互作用和反应。化合物的分类可以分为两大类：离子化合物和共价化合物。离子化合物是在电子从一个原子转移到另一个原子时形成的，导致带电离子之间的吸引力。食盐（氯化钠）就是一种常见的离子化合物，由钠离子和氯离子组成。另一方面，共价化合物是由原子共享电子形成的。这种共享在原子之间创建了强大的结合，形成稳定的化合物。二氧化碳就是一种共价化合物的例子，其中一个碳原子与两个氧原子共享电子。理解化合物的结构对于预测它们在化学反应中的行为至关重要。化合物中原子的排列决定了其性质，如沸点、熔点和溶解度。例如，金刚石和石墨之间性质的差异是由于这两种化合物中碳原子的不同排列造成的。金刚石坚硬且透明，而石墨柔软且不透明。除了结构差异外，化合物还可以表现出各种类型的键，包括极性和非极性键。当原子之间的电子共享不均匀时，就会发生极性键，从而导致分子带有轻微的电荷。水就是一种极性化合物的绝佳例子，因为氧原子比氢原子更紧密地拉动电子，形成偶极矩。另一方面，非极性键发生在原子之间的电子均匀共享时。像甲烷这样的分子被认为是非极性化合物，因为碳和氢原子均匀共享电子，导致电荷分布平衡。化合物的重要性超出了学术研究；它们在制药、农业和材料科学等各个行业中发挥着重要作用。例如，了解化合物的性质使化学家能够开发出有效针对疾病的新药物。同样，在农业中，对化合物的知识有助于创造提高作物产量的肥料。总之，化合物不仅仅是元素的集合，而是具有独特性质和行为的复杂实体。通过研究化合物，我们获得了化学基本原理及其在日常生活中的应用的深入见解。无论是在实验室还是在自然界，化合物无处不在，影响着我们呼吸的空气以及我们吃的食物。理解它们对于任何对科学感兴趣的人来说都是至关重要的，因为它们构成了物质的基本构件，并且与我们周围的世界密切相关。