A branch of natural science that focuses on the study of the composition, structure, and properties of substances, as well as the transformations that occur during chemical reactions.
An academic discipline that investigates the behavior and interactions of atoms and molecules, categorized into various subfields such as inorganic, organic, and physical chemistry based on the materials and processes involved.
A subject taught in schools that is a part of the scientific curriculum, where students learn about the nature of matter and the principles governing chemical reactions.
The scientific study that underpins the creation and application of materials and compounds in industries, utilizing chemical reactions to produce everything from pharmaceuticals to synthetic fibers.
Example:
貴方は、化学を勉強しますか。
An industrial sector focused on producing various inorganic and organic compounds through chemical reactions, encompassing the manufacturing of products such as glass, cement, fertilizers, dyes, petroleum, pharmaceuticals, explosives, synthetic fibers, and synthetic resins.
A branch of manufacturing that utilizes the principles of chemistry to transform raw materials into a wide range of chemical products, playing a crucial role in both consumer goods and industrial applications.
The entirety of industries dedicated to the chemical processes that facilitate the creation and processing of substances, including both the production of basic chemicals and specialized products requiring intricate chemical formulation.
A representation that illustrates the chemical composition and bonding of a substance using elemental symbols and numerical values. This includes various types such as molecular formulas, empirical formulas, and structural formulas.
An expression that conveys the types and quantities of atoms in a compound, essential for understanding the chemical nature and behavior of a material.
A method of denoting the arrangement and relationship of elements within a compound, which is crucial for chemical analysis and reactions.
A symbolic notation that specifies the constituents of a chemical compound, allowing for the identification of its underlying structure and properties.
Example:
水の化学式は、Ｈ―Ｏ―Ｈである。
A professional who studies the composition, structure, properties, and changes of matter, often conducting experiments to understand chemical processes and develop new materials or substances.
An individual engaged in the scientific discipline of chemistry, focusing on the interactions between different elements and compounds to advance knowledge and applications in various fields, including pharmaceuticals, materials science, and environmental science.
A researcher or expert who applies principles of chemistry to solve practical problems, enhance industrial processes, or innovate in product development within sectors like healthcare, engineering, or agriculture.
Example:
私の友人には２人の研究者がいる。一人は言語学者で、もう一人は化学者だ。
さまざまな化学的プロセスを通じて製造された、特定の機能や用途を持つ物質や製品のこと。
科学的手法に基づき、分子や原子の構造を利用して創出された計画的な製品群。
化学反応を利用して合成された材料で、工業や日常生活における多様な製品を指す。
Example:
石油が化学製品の材料として用いられるようになったのはごく最近のことである。