Ordförråd för IELTS (Akademisk) - Kemi
Här kommer du att lära dig några engelska ord om kemi, såsom "arsenik", "katalysator", "destillera", etc. som behövs för IELTS-provet.
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(chemistry) a poisonous white powder used in making glass, pesticides, and weed killers
arsenik, arseniktrioxid
a chemical element, symbol Ca, that is essential for healthy bones and teeth and occurs naturally in many foods and minerals
a chemical element present in all living things and in substances such as coal, graphite, and diamond
kol, kol
a reddish-brown metallic chemical element that conducts heat and electricity well and is widely used in electrical wiring and alloys
koppar, rödkoppar
(chemistry) a very light, colorless, inert gas that is the hardest gas to liquefy and is found in natural gas deposits
helium, helium
a valuable yellow-colored metal that is used for making jewelry
guld
a metallic chemical element with a silvery-gray appearance, widely used for making tools, steel, buildings, and various industrial products
järn, metall
a heavy soft metal, used in making bullets, in plumbing and roofing, especially in the past
bly, tungmetall
a water-soluble chemical substance that contains Hydrogen and has a sour taste or corrosive feature with a PH less than 7
syra, sur substans
(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself
katalysator, aktiverare
I Haber-processen används järn som katalysator för att främja syntesen av ammoniak från kväve- och vätegas.
(chemistry) a substance used in or produced by a reaction that changes atoms or molecules
kemikalie
a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties
element, komponent
a pure substance formed from two or more chemical elements chemically bonded in fixed proportions
förening
(chemistry) to combine and form a compound with water molecules
hydrera, kombinera med vattenmolekyler
Vattenfri kopparsulfat hydraterar lätt i fuktiga miljöer.
(chemistry) a combination of two or more substances without forming a chemical bond or any chemical reaction
blandning
to take in a liquid, gas, or other substance from the surface chemically or physically
adsorbera, binda genom adsorption
evenly distributed or in a state of stability
balanserad, stabil
Dansaren visade grace och smidighet med sina balanserade rörelser.
(chemistry) to react in a particular way because of the laws
uppföra sig, reagera
a link that holds atoms or ions together in any molecule or crystal
bindning, förbindelse
to increase the rate of a chemical reaction
katalysera
I närvaro av solljus kan klorofyll i växtceller katalysera omvandlingen av koldioxid och vatten till glukos.
a chemical or nuclear process that is self-sustained and its products cause other processes of the same kind
kedjereaktion
(chemistry) a process in which several chemicals combine and form different substances
kemisk reaktion
(chemistry) to lose water molecules during a chemical reaction
dehydrera, förlora vattenmolekyler
Under syntesen av alkoholer reagerar alkenmolekylen med vatten för att lägga till en -OH-grupp, samtidigt som den avvattnas för att bilda en alkoholprodukt.
to heat a liquid and turn it into gas then cool it and make it liquid again in order to purify it
destillera, rensa genom destillation
Forskarna destillerade blandningen för att separera dess komponenter.
a symbolic representation of a chemical reaction showing reactants and products
kemisk ekvation, reaktionsekvation
a symbolic representation of a chemical substance using its constituent elements
kemisk formel, formel
(chemistry) to become separated from the solvent in a solid form
fälla ut
Kylningsprocessen i den vulkaniska ventilen lät mineraler fälla ut, vilket skapade fantastiska stalaktiter och stalagmiter.
the action of keeping something the way it is or in good condition
bevarande, konservering
(chemistry) a process in which several chemicals combine and form different substances
reaktion
a light silver-gray metal used primarily for making cooking equipment and aircraft parts
aluminium, aluminium
Aluminiumfolie används vanligtvis för att slå in mat eftersom det ger ett skydd mot fukt, ljus och luft.
