chemical formula

简明释义

化学式

英英释义

例句

1.To identify a compound, you need to know its chemical formula 化学式.

要识别一个化合物，你需要知道它的化学式。

2.The chemical formula 化学式 for table salt is NaCl.

食盐的化学式是NaCl。

3.The chemical formula 化学式 for ammonia is NH3.

氨的化学式是NH3。

4.In organic chemistry, the chemical formula 化学式 of glucose is C6H12O6.

在有机化学中，葡萄糖的化学式是C6H12O6。

5.The chemical formula 化学式 for water is H2O.

水的化学式是H2O。

作文

In the realm of chemistry, understanding the concept of a chemical formula is essential for anyone who wishes to delve deeper into the subject. A chemical formula is a symbolic representation that indicates the types and numbers of atoms in a substance. It serves as a shorthand method for conveying complex information about a compound's composition. For instance, the chemical formula for water is H2O, which tells us that each molecule of water consists of two hydrogen atoms and one oxygen atom. This simple notation allows scientists to communicate effectively about the substances they study without having to describe them in lengthy prose.The importance of chemical formulas extends beyond mere communication; they are crucial for calculations in chemical reactions. When chemists perform experiments, they often need to know how much of each reactant is required to produce a desired amount of product. By using the chemical formulas of the substances involved, they can apply stoichiometry—a branch of chemistry that deals with the quantitative relationships between reactants and products in chemical reactions. For example, if we consider the reaction between hydrogen and oxygen to form water, the balanced equation can be represented as 2H2 + O2 → 2H2O. Here, the chemical formulas indicate the ratios in which the reactants combine and the products are formed.Moreover, chemical formulas can also provide insight into the structure and properties of compounds. There are different types of chemical formulas, including empirical formulas, molecular formulas, and structural formulas. The empirical formula gives the simplest whole-number ratio of the elements in a compound, while the molecular formula provides the actual number of atoms of each element in a molecule. Structural formulas, on the other hand, depict the arrangement of atoms within a molecule, which is vital for understanding how a compound interacts with others. For instance, the molecular formula of glucose is C6H12O6, but its structural formula reveals how the atoms are bonded together, influencing its biological function as an energy source.In addition to their practical applications, chemical formulas also play a role in education and research. Students learning chemistry must become familiar with interpreting and writing chemical formulas as part of their foundational knowledge. This skill is not only important for academic success but also for pursuing careers in science, medicine, engineering, and various other fields. As researchers continue to explore new materials and compounds, the ability to accurately represent these substances through chemical formulas becomes increasingly important. In fields such as pharmaceuticals, where precise formulations are critical, the accuracy of a chemical formula can have significant implications for drug development and safety.In conclusion, the chemical formula is a fundamental aspect of chemistry that encapsulates essential information about the composition and behavior of substances. From facilitating communication among scientists to aiding in the calculation of reactants and products, understanding chemical formulas is vital for anyone engaged in the sciences. As we continue to advance our knowledge of chemistry, the significance of chemical formulas will undoubtedly remain a cornerstone of scientific inquiry and innovation.

在化学领域，理解化学式的概念对于任何希望深入研究该学科的人来说都是至关重要的。化学式是一种符号表示法，指示物质中原子的类型和数量。它作为一种简写方法，用于传达有关化合物组成的复杂信息。例如，水的化学式是H2O，这告诉我们每个水分子由两个氢原子和一个氧原子组成。这种简单的标记法使科学家能够有效地沟通他们所研究的物质，而不必用冗长的文字描述。化学式的重要性不仅限于简单的交流；它们对于化学反应中的计算至关重要。当化学家进行实验时，他们常常需要知道需要多少每种反应物才能产生所需量的产品。通过使用参与物质的化学式，他们可以应用化学计量学——一个处理反应物和产品之间定量关系的化学分支。例如，如果我们考虑氢和氧反应生成水的反应，平衡方程可以表示为2H2 + O2 → 2H2O。在这里，化学式指示了反应物结合和生成产品的比例。此外，化学式还可以提供关于化合物结构和性质的见解。化学式有不同的类型，包括经验式、分子式和结构式。经验式给出了化合物中元素的最简单整数比，而分子式提供了分子中每种元素的实际原子数量。另一方面，结构式描绘了分子内原子的排列，这对理解化合物如何与其他物质相互作用至关重要。例如，葡萄糖的分子式是C6H12O6，但其结构式揭示了原子如何结合在一起，这影响了其作为能量来源的生物功能。除了实际应用外，化学式在教育和研究中也发挥着重要作用。学习化学的学生必须熟悉解释和书写化学式，这是他们基础知识的一部分。这项技能不仅对学业成功至关重要，而且对追求科学、医学、工程和其他各个领域的职业也很重要。随着研究人员继续探索新材料和化合物，准确通过化学式表示这些物质的能力变得越来越重要。在制药等领域，精确的配方至关重要，化学式的准确性可能对药物开发和安全性产生重大影响。总之，化学式是化学的一个基本方面，封装了有关物质组成和行为的重要信息。从促进科学家之间的交流到帮助计算反应物和产品，理解化学式对于从事科学工作的人至关重要。随着我们不断推进对化学的认识，化学式的重要性无疑将继续成为科学探究和创新的基石。