chemical property

简明释义

化学性质

英英释义

例句

1.The melting point of a substance is an important chemical property 化学性质 that indicates how it behaves when heated.

物质的熔点是一个重要的chemical property 化学性质，它表明了物质在加热时的行为。

2.Solubility is a chemical property 化学性质 that describes how well a substance can dissolve in a solvent.

溶解度是描述物质在溶剂中能多好地溶解的chemical property 化学性质。

3.The chemical property 化学性质 of flammability determines whether a material can catch fire easily.

易燃性是决定材料是否容易着火的chemical property 化学性质。

4.The chemical property 化学性质 of reactivity with acids is crucial for identifying metals.

与酸的反应性是识别金属的重要chemical property 化学性质。

5.Acidity is a key chemical property 化学性质 that can affect the reactivity of substances in a solution.

酸性是一个关键的chemical property 化学性质，它可以影响溶液中物质的反应性。

作文

Understanding the concept of chemical property is essential for anyone studying chemistry. A chemical property refers to a characteristic of a substance that becomes evident during a chemical reaction. This means that when a substance undergoes a change in its chemical structure, certain properties will reveal themselves. For instance, the ability of iron to rust when exposed to moisture and oxygen is a classic example of a chemical property. Rusting changes the composition of iron, transforming it into iron oxide, which is a different substance altogether.In contrast to physical properties, which can be observed without changing the substance's chemical identity, chemical properties can only be observed when a substance interacts with other substances. This distinction is crucial for chemists as they analyze materials and predict their behavior under various conditions. Some common examples of chemical properties include flammability, acidity, reactivity with water, and the ability to oxidize.Flammability is a particularly interesting chemical property because it determines how easily a substance can ignite and sustain combustion. For example, gasoline has a high flammability, making it useful as fuel but also hazardous if not handled properly. On the other hand, water is not flammable, which is why it is often used to extinguish fires.Another significant chemical property is acidity, which describes how a substance can donate protons (H+) in a solution. Acids like hydrochloric acid have distinct chemical properties that allow them to react with bases to form salts and water. This reaction is fundamental in many chemical processes, including digestion in the human body.Reactivity with water is also a notable chemical property. Some metals, such as sodium and potassium, react violently with water, producing hydrogen gas and a corresponding hydroxide. This reactivity must be carefully managed in laboratory settings to prevent dangerous explosions.The ability to oxidize is another important chemical property, where substances lose electrons and increase their oxidation state. For example, when iron is exposed to oxygen over time, it undergoes oxidation, leading to the formation of rust. Understanding this chemical property is vital for preventing corrosion in construction and manufacturing.In summary, chemical properties are fundamental characteristics that define how substances interact and change during chemical reactions. They help scientists and engineers to understand material behaviors, predict outcomes in chemical reactions, and develop new materials with desired chemical properties. Therefore, a solid grasp of chemical properties is indispensable for anyone involved in scientific research or industrial applications. By studying these properties, we can better appreciate the complexities of matter and harness its potential for innovation and practical use in everyday life.

理解化学性质的概念对于任何学习化学的人来说都是至关重要的。化学性质是指在化学反应过程中显现出的物质特性。这意味着当一种物质经历其化学结构的变化时，某些特性将会显露出来。例如，铁在潮湿和氧气的环境中生锈的能力就是一个典型的化学性质的例子。生锈改变了铁的成分，将其转变为氧化铁，这是一种完全不同的物质。与物理性质不同，物理性质可以在不改变物质的化学身份的情况下观察到，而化学性质只能在物质与其他物质相互作用时观察到。这一区别对化学家在分析材料和预测它们在各种条件下的行为时至关重要。一些常见的化学性质包括易燃性、酸性、水的反应性以及氧化能力。易燃性是一个特别有趣的化学性质，因为它决定了物质多容易点燃并维持燃烧。例如，汽油具有高易燃性，使其作为燃料非常有用，但如果处理不当也会很危险。另一方面，水是不易燃的，这就是为什么它常常被用来扑灭火灾。另一个重要的化学性质是酸性，它描述了一种物质在溶液中如何释放质子（H+）。像盐酸这样的酸具有独特的化学性质，使它们能够与碱反应生成盐和水。这种反应在许多化学过程中是根本性的，包括人体的消化过程。与水的反应性也是一个显著的化学性质。一些金属，如钠和钾，与水反应剧烈，产生氢气和相应的氢氧化物。这种反应必须在实验室环境中小心管理，以防止危险的爆炸。氧化能力是另一个重要的化学性质，其中物质失去电子并增加其氧化态。例如，当铁暴露在氧气中时，随着时间的推移，它会发生氧化，导致生锈。理解这一化学性质对防止建筑和制造中的腐蚀至关重要。总之，化学性质是定义物质在化学反应中如何相互作用和变化的基本特征。它们帮助科学家和工程师理解材料的行为，预测化学反应的结果，并开发具有所需化学性质的新材料。因此，扎实掌握化学性质对于任何参与科学研究或工业应用的人来说都是不可或缺的。通过研究这些性质，我们可以更好地欣赏物质的复杂性，并利用其潜力进行创新和实际应用于日常生活中。