law of multiple proportions

简明释义

倍比律

英英释义

例句

1.By applying the law of multiple proportions 多重比例定律, chemists can deduce the existence of different compounds formed from the same elements.

通过应用多重比例定律，化学家可以推断由相同元素形成的不同化合物的存在。

2.When studying the compounds formed by carbon and oxygen, we can observe the law of multiple proportions 多重比例定律, as CO and CO2 have different ratios of oxygen.

在研究碳和氧形成的化合物时，我们可以观察到多重比例定律，因为CO和CO2具有不同的氧比例。

3.The law of multiple proportions 多重比例定律 is fundamental in determining the molecular formulas of compounds.

在确定化合物的分子式时，多重比例定律是基本的。

4.In chemistry classes, students are often taught the law of multiple proportions 多重比例定律 to understand how elements combine in different ratios.

在化学课上，学生们经常学习多重比例定律以理解元素如何以不同的比例结合。

5.The law of multiple proportions 多重比例定律 explains why water (H2O) and hydrogen peroxide (H2O2) have different properties despite both containing hydrogen and oxygen.

尽管水（H2O）和过氧化氢（H2O2）都含有氢和氧，但多重比例定律解释了它们为何具有不同的性质。

作文

The field of chemistry is replete with fundamental principles that help us understand the composition of matter and the relationships between different substances. One such principle is the law of multiple proportions, which states that when two elements can combine in more than one way to form different compounds, the ratios of the masses of one element that combine with a fixed mass of the other element can be expressed as simple whole numbers. This law was first formulated by John Dalton in the early 19th century and is crucial for understanding chemical formulas and the stoichiometry of reactions.To illustrate the law of multiple proportions, consider the case of carbon and oxygen. These two elements can combine to form two distinct compounds: carbon monoxide (CO) and carbon dioxide (CO2). In carbon monoxide, one atom of carbon combines with one atom of oxygen, while in carbon dioxide, one atom of carbon combines with two atoms of oxygen. If we take a fixed amount of carbon, say 12 grams, it will combine with 16 grams of oxygen in carbon monoxide and 32 grams of oxygen in carbon dioxide. The ratio of the masses of oxygen that combine with the same mass of carbon is 16:32, which simplifies to 1:2. This simple whole number ratio exemplifies the law of multiple proportions.Understanding this law is essential not just for academic purposes but also for practical applications in various fields, including pharmaceuticals, materials science, and environmental chemistry. For instance, when chemists synthesize new compounds, they rely on the law of multiple proportions to predict how different elements might interact and what products may result from those interactions. By knowing the ratios in which elements combine, chemists can design experiments and develop new materials with desired properties.Moreover, the law of multiple proportions also emphasizes the importance of atomic theory in chemistry. It supports the idea that matter is made up of discrete units called atoms, which combine in specific ways to form compounds. This understanding paved the way for further advancements in chemical science, including the development of the periodic table and the discovery of new elements.In conclusion, the law of multiple proportions is a foundational concept in chemistry that illustrates how elements combine to form compounds in fixed, simple ratios. Its implications extend far beyond the classroom, influencing research and industry practices. As we continue to explore the complexities of chemical interactions, the law of multiple proportions serves as a guiding principle that helps us decode the intricacies of matter around us. By grasping this law, students and professionals alike can enhance their understanding of chemical behavior and contribute to innovations in science and technology.

化学领域充满了基本原理，这些原理帮助我们理解物质的组成以及不同物质之间的关系。其中一个原理是多重比例定律，该定律指出，当两种元素可以以多种方式结合形成不同的化合物时，与固定质量的另一种元素结合的一个元素的质量比可以用简单的整数表示。这个定律最早是由约翰·道尔顿在19世纪初提出的，对于理解化学公式和反应的化学计量学至关重要。为了说明多重比例定律，我们考虑碳和氧的案例。这两种元素可以结合形成两种不同的化合物：一氧化碳（CO）和二氧化碳（CO2）。在一氧化碳中，一个碳原子与一个氧原子结合，而在二氧化碳中，一个碳原子与两个氧原子结合。如果我们取固定量的碳，比如12克，它会与16克氧气结合形成一氧化碳，而与32克氧气结合形成二氧化碳。与同质量的碳结合的氧的质量比为16:32，简化后为1:2。这个简单的整数比例例证了多重比例定律。理解这个定律不仅对学术目的至关重要，而且对制药、材料科学和环境化学等各个领域的实际应用也至关重要。例如，当化学家合成新化合物时，他们依赖于多重比例定律来预测不同元素可能如何相互作用，以及这些相互作用可能产生什么产品。通过了解元素结合的比率，化学家可以设计实验并开发具有所需特性的材料。此外，多重比例定律还强调了原子理论在化学中的重要性。它支持物质由称为原子的离散单元组成的观点，这些原子以特定的方式结合形成化合物。这种理解为化学科学的进一步发展铺平了道路，包括周期表的开发和新元素的发现。总之，多重比例定律是化学中的一个基础概念，它说明了元素以固定、简单的比例结合形成化合物。它的影响远远超出了课堂，影响着研究和工业实践。随着我们继续探索化学相互作用的复杂性，多重比例定律作为一个指导原则，帮助我们解码周围物质的复杂性。通过掌握这一法则，学生和专业人士都可以增强对化学行为的理解，并为科学和技术的创新做出贡献。