chemical change

简明释义

化学变化

英英释义

例句

1.Baking a cake involves several chemical changes 化学变化 as ingredients react with heat.

烤蛋糕涉及多个chemical changes 化学变化，因为成分与热量反应。

2.The souring of milk is an example of a chemical change 化学变化 caused by bacteria.

牛奶变酸是由细菌引起的chemical change 化学变化的一个例子。

3.When wood burns in a fire, it undergoes a chemical change 化学变化 that transforms it into ash and smoke.

当木头在火中燃烧时，它经历了一个chemical change 化学变化，将其转变为灰烬和烟雾。

4.Rust forming on iron is a visible sign of a chemical change 化学变化 due to oxidation.

铁上形成的锈是由于氧化引起的chemical change 化学变化的可见标志。

5.Photosynthesis in plants is a complex chemical change 化学变化 that converts sunlight into energy.

植物中的光合作用是一个复杂的chemical change 化学变化，将阳光转化为能量。

作文

Chemical changes are fundamental processes that occur in nature and play a crucial role in various aspects of our lives. A chemical change (化学变化) is a transformation that results in the formation of new substances with distinct properties. Unlike physical changes, which merely alter the form or appearance of a substance without changing its chemical composition, chemical changes (化学变化) involve the breaking and forming of chemical bonds, leading to the creation of different molecules.One of the most common examples of a chemical change (化学变化) is the process of rusting. When iron is exposed to moisture and oxygen in the air, it undergoes a chemical change (化学变化) that results in the formation of iron oxide, commonly known as rust. This transformation not only alters the physical appearance of the iron but also weakens its structural integrity, demonstrating how chemical changes (化学变化) can have significant implications for materials and structures.Another everyday example of a chemical change (化学变化) is the cooking of food. When we cook an egg, the heat causes the proteins in the egg white and yolk to denature, resulting in a solid form. This is a clear indication of a chemical change (化学变化) because the original components cannot be reverted back to their raw state. The delicious aroma and taste that emerge from cooking are also a result of various chemical changes (化学变化) occurring during the process.In addition to these everyday occurrences, chemical changes (化学变化) are also vital in industrial processes. For instance, the production of plastics involves numerous chemical changes (化学变化) where monomers are chemically bonded together to create polymers. This transformation is essential for creating materials that are used in countless applications, from packaging to automotive parts. Understanding chemical changes (化学变化) is crucial for chemists and engineers who strive to innovate and improve manufacturing processes.Moreover, chemical changes (化学变化) are central to biological systems. In our bodies, metabolic processes involve a series of chemical changes (化学变化) that convert food into energy. Enzymes facilitate these reactions, ensuring that nutrients are broken down and transformed efficiently. This highlights the importance of chemical changes (化学变化) not just in chemistry but also in biology and health.In conclusion, chemical changes (化学变化) are integral to both our daily lives and the functioning of the natural world. They are responsible for the transformation of substances, the creation of new materials, and the processes that sustain life. By understanding the significance of chemical changes (化学变化), we can appreciate the complexity and beauty of the interactions that occur around us, whether in the kitchen, in nature, or in industrial settings. The study of chemical changes (化学变化) continues to be a vital area of research, leading to advancements in technology, medicine, and environmental science.

化学变化是自然界中发生的基本过程，在我们生活的各个方面都起着至关重要的作用。化学变化 是一种转变，导致形成具有不同性质的新物质。与仅仅改变物质形式或外观而不改变其化学成分的物理变化不同，化学变化 涉及化学键的断裂和形成，从而创造出不同的分子。一个最常见的化学变化 的例子是生锈的过程。当铁暴露在空气中的水分和氧气时，它会经历一种化学变化，导致形成氧化铁，通常称为锈。这一转变不仅改变了铁的外观，还削弱了其结构完整性，表明化学变化 对材料和结构可能产生重大影响。另一个日常的化学变化 的例子是食物的烹饪。当我们煮蛋时，热量使蛋白和蛋黄中的蛋白质变性，形成固体状态。这清楚地表明了化学变化，因为原始成分无法恢复到生状态。烹饪过程中出现的美味香气和味道也是由于各种化学变化 的发生。除了这些日常现象，化学变化 在工业过程中也至关重要。例如，塑料的生产涉及众多的化学变化，其中单体通过化学结合形成聚合物。这一转变对于创造在无数应用中使用的材料至关重要，从包装到汽车零件。理解化学变化 对于努力创新和改善制造过程的化学家和工程师来说至关重要。此外，化学变化 在生物系统中也是核心。在我们的身体中，代谢过程涉及一系列的化学变化，将食物转化为能量。酶促进这些反应，确保营养物质被有效地分解和转化。这突显了化学变化 在化学、生命科学和健康中的重要性。总之，化学变化 对于我们日常生活和自然界的运作至关重要。它们负责物质的转变、新材料的创造以及维持生命的过程。通过理解化学变化 的重要性，我们可以欣赏周围发生的相互作用的复杂性和美丽，无论是在厨房、自然界还是工业环境中。对化学变化 的研究仍然是一个重要的研究领域，推动着技术、医学和环境科学的进步。