reactant

简明释义

英[riˈæktənt]美[riˈæktənt]

n. [化学] 反应物；反应剂

英英释义

单词用法

同义词

反义词

例句

1.The influence of reacting temperature and ratio of reactant were studied.

研究反应温度、反应物配比的影响。

2.The results show that the defects in the weld such as interface reactant and pore are the key factors to reduce the material weldability.

研究发现，焊缝中存在的界面反应物、气孔缺陷，是导致该种材料焊接性显著降低的主要因素。

3.The effects of reactant ratio, temperature , time, and solvents on the reaction were exam-ined.

讨论了物料配比、温度、反应时间、溶剂用量等因素对反应的影响。

4.Such reaction conditions as catalyst type, reactant mole ratio, water-carried agent and temperature were determined.

考察了催化剂、反应物的摩尔比、带水剂、反应温度等对反应的影响。

5.The pore of catalyst carrier can provide reactant and resultant to affect the speed and efficiency of reaction.

催化剂载体的孔径可以为反应物及其产物提供反应通道，影响反应的速度和效率。

6.The rules influenced by many factors, such as reaction condition, reactant proportion, reaction temperature and time, was draw out.

考察了反应条件的控制、反应原料配比、反应时间、反应温度等因素对产品性能的影响规律。

7.In the chemical reaction, hydrogen and oxygen are both considered as reactants (反应物).

在这个化学反应中，氢和氧都被视为反应物。

8.The catalyst helps to speed up the reaction without altering the reactants (反应物).

催化剂有助于加速反应，而不改变反应物。

9.When mixing the reactants (反应物), it is important to control the temperature.

在混合反应物时，控制温度是很重要的。

10.In a balanced equation, the number of atoms in the reactants (反应物) must equal those in the products.

在一个平衡方程中，反应物中的原子数量必须等于产物中的原子数量。

11.The rate of the reaction depends on the concentration of the reactants (反应物).

反应速率取决于反应物的浓度。

作文

In the world of chemistry, understanding the fundamental components of chemical reactions is crucial. One of the key terms that every chemistry student must master is reactant. A reactant (反应物) is defined as a substance that undergoes a change during a chemical reaction. This term is vital because it helps us identify what is present at the beginning of a reaction and how these substances interact to form products. When we consider a simple chemical equation, such as the combustion of methane, we can clearly see the role of reactants (反应物). The equation can be written as CH₄ + 2O₂ → CO₂ + 2H₂O. Here, CH₄ (methane) and O₂ (oxygen) are the reactants (反应物), while CO₂ (carbon dioxide) and H₂O (water) are the products. This example illustrates how the reactants (反应物) combine in specific proportions to produce new substances through a series of transformations.Understanding reactants (反应物) also requires knowledge of the conditions under which they react. Factors such as temperature, pressure, and concentration can significantly influence the behavior of reactants (反应物). For instance, increasing the temperature often provides the energy needed for reactants (反应物) to overcome activation energy barriers, leading to faster reactions. Similarly, changing the concentration of a reactant (反应物) can alter the rate at which products are formed.Moreover, the concept of reactants (反应物) extends beyond simple combinations. In complex reactions, such as those found in biological systems, multiple reactants (反应物) may interact in intricate ways. Enzymatic reactions, for example, involve substrates acting as reactants (反应物) that bind to an enzyme's active site, leading to the formation of products through a carefully regulated process. This highlights the importance of reactants (反应物) in not only chemical but also biological contexts.To better grasp the significance of reactants (反应物), one can conduct experiments that demonstrate their properties and behaviors. For example, mixing vinegar and baking soda produces carbon dioxide gas, showcasing how two reactants (反应物) interact to create a new product. Such hands-on experiences reinforce theoretical knowledge and deepen our understanding of how reactants (反应物) function in different scenarios.In conclusion, the term reactant (反应物) is essential for anyone studying chemistry. It encapsulates the idea of substances that participate in chemical reactions, undergoing transformations to yield new products. By exploring the characteristics and behaviors of reactants (反应物), students can gain a comprehensive understanding of chemical processes. Whether in simple reactions or complex biological systems, reactants (反应物) play a pivotal role in shaping the world around us, making their study both fascinating and fundamental to the field of chemistry.

在化学的世界中，理解化学反应的基本组成部分至关重要。每个化学学生必须掌握的关键术语之一是reactant（反应物）。reactant（反应物）被定义为在化学反应中经历变化的物质。这个术语至关重要，因为它帮助我们识别反应开始时存在的物质，以及这些物质如何相互作用以形成产物。当我们考虑一个简单的化学方程式，例如甲烷的燃烧，我们可以清楚地看到reactants（反应物）的角色。方程式可以写成CH₄ + 2O₂ → CO₂ + 2H₂O。在这里，CH₄（甲烷）和O₂（氧气）是reactants（反应物），而CO₂（二氧化碳）和H₂O（水）是产物。这个例子说明了reactants（反应物）如何以特定比例结合，产生新物质，通过一系列转化。理解reactants（反应物）还需要了解它们反应的条件。温度、压力和浓度等因素可以显著影响reactants（反应物）的行为。例如，增加温度通常会提供使reactants（反应物）克服活化能障碍所需的能量，从而加快反应。同样，改变某种reactant（反应物）的浓度也可以改变产物形成的速度。此外，reactants（反应物）的概念不仅限于简单的组合。在复杂反应中，例如生物系统中，多个reactants（反应物）可能以复杂的方式相互作用。例如，酶促反应涉及作为reactants（反应物）的底物与酶的活性位点结合，通过精心调节的过程形成产物。这突显了reactants（反应物）在化学和生物学背景中的重要性。为了更好地掌握reactants（反应物）的意义，可以进行实验以展示它们的特性和行为。例如，将醋和小苏打混合会产生二氧化碳气体，展示了两种reactants（反应物）如何相互作用以创造新产品。这种动手经验强化了理论知识，加深了我们对reactants（反应物）在不同场景中功能的理解。总之，术语reactant（反应物）对于任何学习化学的人来说都是必不可少的。它概括了参与化学反应的物质的概念，这些物质经历转化以产生新产品。通过探索reactants（反应物）的特性和行为，学生可以全面理解化学过程。无论是在简单反应还是复杂的生物系统中，reactants（反应物）在塑造我们周围的世界中发挥着关键作用，使它们的研究既迷人又对化学领域至关重要。