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ACT Science - Chemistry

Ici, vous apprendrez quelques mots anglais liés à la chimie, tels que « radioactif », « pipette », « titrage », etc. qui vous aideront à réussir vos ACT.

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ACT Vocabulary for Science
polymer

a large molecule composed of repeating structural units, or monomers, covalently bonded together in a chain-like structure

polymère

polymère

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[nom]
isotope

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

isotope

isotope

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[nom]
reactive

having a tendency to to undergo chemical reactions

réactif

réactif

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[Adjectif]
radioactive

containing or relating to a dangerous form of energy produced by nuclear reactions

radioactif

radioactif

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[Adjectif]
covalent bond

a chemical bond where atoms share electrons to form a stable molecule

liaison covalente

liaison covalente

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[nom]
double bond

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

lien double

lien double

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[nom]
hydrophilic

defining substances or surfaces that have a strong attraction to water molecules, allowing them to easily absorb or interact with water

hydrophile

hydrophile

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[Adjectif]
hydrophobic

characterized by substances or surfaces that repel water molecules, showing little or no affinity for water

hydrophobe

hydrophobe

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[Adjectif]
exothermic reaction

a chemical reaction that releases heat energy to its surroundings, typically resulting in a temperature increase

réaction exothermique

réaction exothermique

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[nom]
endothermic reaction

a chemical process that absorbs heat energy from its surroundings, often resulting in a temperature decrease

réaction endothermique

réaction endothermique

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[nom]
atomic mass

the weighted average mass of an atom of an element, taking into account the masses of all its naturally occurring isotopes

masse atomique

masse atomique

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[nom]
molecular mass

the total mass of all the atoms in a single molecule of a substance

masse moléculaire

masse moléculaire

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[nom]
mass number

the total number of protons and neutrons in the nucleus of an atom

nombre de masse

nombre de masse

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[nom]
mole

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

mole

mole

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[nom]
beaker

a container usually made of glass or plastic used in chemistry and laboratory

bécher

bécher

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[nom]
pipette

a laboratory tool used to measure and transfer small volumes of liquid

pipette

pipette

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[nom]
centrifuge

a device that spins samples to separate components based on density

centrifugeuse

centrifugeuse

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[nom]
indicator paper

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

papier indicateur

papier indicateur

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[nom]
periodic table

a tabular arrangement of chemical elements organized based on their atomic number, electron configuration, and recurring chemical properties

tableau périodique

tableau périodique

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[nom]
to dissolve

(of a solid) to become one with a liquid

dissoudre

dissoudre

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[verbe]
solubilization

the process of dispersing or dissolving a substance into a solvent to form a homogeneous solution

solubilisation

solubilisation

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[nom]
microstructure

the arrangement, composition, and characteristics of a material at a microscopic level

microstructure

microstructure

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[nom]
crystalline

denoting substances with a highly organized molecular structure, akin to crystals

cristallin

cristallin

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[Adjectif]
concentration

the measure of how much of a substance is present in a certain volume of solution

concentration

concentration

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[nom]
microprobe

a device used to analyze the chemical composition of small samples at a microscopic scale

microsonde

microsonde

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[nom]
superabsorbent

a substance capable of absorbing and retaining a large amount of liquid relative to its own mass

superabsorbant

superabsorbant

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[nom]
multicomponent alloy

a type of metallic material composed of three or more elements mixed together in varying proportions

alliage multicomposant

alliage multicomposant

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[nom]
nanotube

a tiny, tube-shaped structure made of carbon atoms, with remarkable strength and electrical properties

nanotube

nanotube

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[nom]
molten

heated to a liquid state due to high temperatures

fondue

fondue

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[Adjectif]
radical

a group of atoms bonded together that behaves as a single unit within a molecule

radical

radical

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[nom]
phase

a phase is a distinct form of matter with uniform chemical and physical properties, separated from other forms by boundaries

phase

phase

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[nom]
calcification

the process where calcium or calcium salts accumulate in a tissue, making it hard and rigid

calcification

calcification

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[nom]
fermentation

the process by which microorganisms convert carbohydrates into alcohol, acids, or gases

fermentation

fermentation

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[nom]
to detoxify

to eliminate or neutralize harmful substances

détoxifier

détoxifier

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[verbe]
to assay

to analyze or test a substance, typically in a laboratory setting, to determine its components or qualities

analyser

analyser

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[verbe]
crystallographer

a scientist who studies the structure and properties of crystals

crystallographe

crystallographe

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[nom]
cosmochemist

a scientist who studies the chemical composition and processes of celestial bodies to understand the formation and evolution of the universe

cosmochemiste

cosmochemiste

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[nom]
chromatography

a laboratory technique used to separate and analyze mixtures of substances based on their differential affinities for a stationary phase and a mobile phase

chromatographie

chromatographie

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[nom]
beta decay

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

désintégration bêta

désintégration bêta

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[nom]
uncharged

not having an electrical charge

non chargé

non chargé

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[Adjectif]
titration

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

titration

titration

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[nom]
equilibrium

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

équilibre dynamique

équilibre dynamique

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[nom]
condenser

a device that turns vapor into liquid by cooling it

condenseur

condenseur

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[nom]
van der waal's forces

weak attractive forces between molecules or atoms, arising from temporary or induced dipoles

forces de Van der Waals

forces de Van der Waals

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[nom]
metallurgist

a scientist or engineer who specializes in the study and production of metals and alloys, including their properties, processing methods, and applications

métallurgiste

métallurgiste

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[nom]
adsorption

the process by which molecules of a substance adhere to the surface of a solid or liquid, forming a thin film or layer

adsorption

adsorption

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[nom]
biodiesel

a renewable, alternative fuel made from organic materials such as vegetable oils, animal fats, or recycled cooking grease

biodiesel

biodiesel

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[nom]
electrolysis

(chemistry) the process of separating a liquid or solution into its parts by passing electricity through it

électrolyse

électrolyse

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[nom]
to suspend

to disperse fine particles throughout a fluid so they remain evenly distributed without settling

suspendre

suspendre

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[verbe]
eutectic

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

eutectique

eutectique

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[nom]
to dilute

to make a solution or mixture weaker or less concentrated by adding more liquid

diluer

diluer

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[verbe]
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