ログイン
a large molecule composed of repeating structural units, or monomers, covalently bonded together in a chain-like structure
ポリマー
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, leading to variation in atomic mass
アイソトープ
containing or relating to a dangerous form of energy produced by nuclear reactions
放射性物質
a type of chemical bond between two atoms involving the sharing of two pairs of electrons, resulting in a stronger and more stable connection than a single bond
二重結合
defining substances or surfaces that have a strong attraction to water molecules, allowing them to easily absorb or interact with water
親水性の
characterized by substances or surfaces that repel water molecules, showing little or no affinity for water
疎水性の
a chemical reaction that releases heat energy to its surroundings, typically resulting in a temperature increase
発熱反応
a chemical process that absorbs heat energy from its surroundings, often resulting in a temperature decrease
吸熱反応
the weighted average mass of an atom of an element, taking into account the masses of all its naturally occurring isotopes
原子質量
a fundamental unit in chemistry that represents the amount of substance containing as many entities (atoms, molecules) as there are in 12 grams of carbon-12
痣
a special paper treated with chemicals that change color in response to certain conditions, used to test for the presence of specific substances or measure pH levels
インジケーター紙
a tabular arrangement of chemical elements organized based on their atomic number, electron configuration, and recurring chemical properties
周期表
the process where calcium or calcium salts accumulate in a tissue, making it hard and rigid
石灰化
a laboratory method used to determine the concentration of a substance in a solution by gradually adding a reagent of known concentration until a reaction is completed
滴定
the process by which microorganisms convert carbohydrates into alcohol, acids, or gases
発酵
the measure of how much of a substance is present in a certain volume of solution
濃度
a device used to analyze the chemical composition of small samples at a microscopic scale
マイクロプローブ
a type of metallic material composed of three or more elements mixed together in varying proportions
多成分合金
a test that measures the presence, amount, or activity of a specific substance in a sample, often used in scientific and medical research
試験法
a state in a chemical reaction where the forward and reverse reactions occur at the same rate, resulting in no net change in the concentrations of reactants and products
平衡
(chemistry) the process of separating a liquid or solution into its parts by passing electricity through it
電解
to make a solution or mixture weaker or less concentrated by adding more liquid
薄める
to disperse fine particles throughout a fluid so they remain evenly distributed without settling
サスペンド
the process of dispersing or dissolving a substance into a solvent to form a homogeneous solution
可溶化
the arrangement, composition, and characteristics of a material at a microscopic level
微細構造
a tiny, tube-shaped structure made of carbon atoms, with remarkable strength and electrical properties
ナノチューブ
a phase is a distinct form of matter with uniform chemical and physical properties, separated from other forms by boundaries
位相
denoting substances with a highly organized molecular structure, akin to crystals
結晶質
a scientist who studies the chemical composition and processes of celestial bodies to understand the formation and evolution of the universe
宇宙化学者
a laboratory technique used to separate and analyze mixtures of substances based on their differential affinities for a stationary phase and a mobile phase
クロマトグラフィー
a type of radioactive decay where a nucleus emits a beta particle (electron or positron) to transform a neutron into a proton or vice versa
ベータ崩壊
weak attractive forces between molecules or atoms, arising from temporary or induced dipoles
ファン・デル・ワール軍
a scientist or engineer who specializes in the study and production of metals and alloys, including their properties, processing methods, and applications
冶金学者
the process by which molecules of a substance adhere to the surface of a solid or liquid, forming a thin film or layer
吸着
a renewable, alternative fuel made from organic materials such as vegetable oils, animal fats, or recycled cooking grease
バイオディーゼル
a specific composition of a mixture of substances, typically metals or alloys, where the melting point is at its lowest possible temperature under atmospheric pressure
共晶
