تسجيل الدخول
العلوم الطبيعية SAT - Chemistry
ستتعلم هنا بعض الكلمات الإنجليزية المتعلقة بالكيمياء، مثل "polymer"، و"isotope"، و"reactive"، وما إلى ذلك، والتي ستحتاجها للتفوق في اختبارات SAT الخاصة بك.
مراجعة
بطاقات الفلاش
الهجاء
اختبار قصير
a large molecule composed of repeating structural units, or monomers, covalently bonded together in a chain-like structure
بوليمر
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
نظير
containing or relating to a dangerous form of energy produced by nuclear reactions
مشع, مشعة
a chemical bond where atoms share electrons to form a stable molecule
رابطة تساهمية, رابطة تساهمية
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
رابطة مزدوجة, رابطة ثنائية
defining substances or surfaces that have a strong attraction to water molecules, allowing them to easily absorb or interact with water
محب للماء
characterized by substances or surfaces that repel water molecules, showing little or no affinity for water
غير قابلة للماء, ماء الطارد
a chemical reaction that releases heat energy to its surroundings, typically resulting in a temperature increase
تفاعل طارد للحرارة, تفاعل ينبعث منه حرارة
a chemical process that absorbs heat energy from its surroundings, often resulting in a temperature decrease
تفاعل ماص للحرارة, تفاعل يمتص الحرارة
the weighted average mass of an atom of an element, taking into account the masses of all its naturally occurring isotopes
الكتلة الذرية, الكتلة الذرية المتوسطة
the total mass of all the atoms in a single molecule of a substance
الكتلة الجزيئية, كتلة جزيء
the total number of protons and neutrons in the nucleus of an atom
عدد الكتلة, الكتلة الذرية
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
مول
a container usually made of glass or plastic used in chemistry and laboratory
بيكر, وعاء
a laboratory tool used to measure and transfer small volumes of liquid
ماصة
a device that spins samples to separate components based on density
جهاز الطرد المركزي, جهاز الطرد
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
ورق مؤشر, ورق اختبار
a tabular arrangement of chemical elements organized based on their atomic number, electron configuration, and recurring chemical properties
الجدول الدوري, جدول العناصر
the process where calcium or calcium salts accumulate in a tissue, making it hard and rigid
تكلس, تكلس
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
تقدير كمي, تحليل كمي
the process by which microorganisms convert carbohydrates into alcohol, acids, or gases
تخمير
the measure of how much of a substance is present in a certain volume of solution
تركيز, محتوى
a device used to analyze the chemical composition of small samples at a microscopic scale
مسبار دقيق
a type of metallic material composed of three or more elements mixed together in varying proportions
سبيكة متعددة المكونات, سبائك متعددة المكونات
a group of atoms bonded together that behaves as a single unit within a molecule
شردة, شردة كيميائية
a test that measures the presence, amount, or activity of a specific substance in a sample, often used in scientific and medical research
اختبار, تحليل
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
توازن ديناميكي, توازن كيميائي
(chemistry) the process of separating a liquid or solution into its parts by passing electricity through it
التحليل الكهربائي
to make a solution or mixture weaker or less concentrated by adding more liquid
يخفف, يخفف التركيز
to disperse fine particles throughout a fluid so they remain evenly distributed without settling
تعليق, توزيع
the process of dispersing or dissolving a substance into a solvent to form a homogeneous solution
الذوبان, الذوبان في المحلول
the arrangement, composition, and characteristics of a material at a microscopic level
الميكروهيكل, البنية المجهرية
a tiny, tube-shaped structure made of carbon atoms, with remarkable strength and electrical properties
أنبوب نانوي
a phase is a distinct form of matter with uniform chemical and physical properties, separated from other forms by boundaries
مرحلة, حالة
to eliminate or neutralize harmful substances
إزالة السموم, تحييد المواد الضارة
denoting substances with a highly organized molecular structure, akin to crystals
بلوري, كريستالي
a scientist who studies the structure and properties of crystals
علماء البلورات
a scientist who studies the chemical composition and processes of celestial bodies to understand the formation and evolution of the universe
كيميائي الفضاء
a laboratory technique used to separate and analyze mixtures of substances based on their differential affinities for a stationary phase and a mobile phase
الكروماتوغرافيا
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
تحلل بيتا, انحلال بيتا
weak attractive forces between molecules or atoms, arising from temporary or induced dipoles
قوى فان دير واهل, تفاعلات فان دير واهل
a scientist or engineer who specializes in the study and production of metals and alloys, including their properties, processing methods, and applications
عالم المعادن
the process by which molecules of a substance adhere to the surface of a solid or liquid, forming a thin film or layer
الامتزاز, الالتصاق السطحي
a renewable, alternative fuel made from organic materials such as vegetable oils, animal fats, or recycled cooking grease
الديزل الحيوي, الديزل المتجدد
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
إيوكتك
a substance capable of absorbing and retaining a large amount of liquid relative to its own mass
السائل الممتص الفائق, المواد الممتصة العظيمة
