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Vocabulary for IELTS (Academic) - Chemistry

Here you will learn some English words about chemistry, such as "arsenic", "catalyst", "distill", etc. that are needed for the IELTS exam.

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Words for Academic IELTS
arsenic
[noun]

a poisonous chemical element with properties of both metals and nonmetals that is grey in color, used in industry or as a pesticide

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calcium
[noun]

a soft silver-white metal that is an important element in bones and teeth

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carbon
[noun]

a nonmetal element that can be found in all organic compounds and living things

Ex: Activated carbon is widely used in filtration systems to remove impurities.
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copper
[noun]

a metallic chemical element that has a red-brown color, primarily used as a conductor in wiring

Ex: In telecommunicationscopper cables are still widely used for transmitting data over short distances .
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helium
[noun]

a chemical element that is a colorless noble gas which is lighter than air

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gold
[noun]

a valuable yellow-colored metal that is used for making jewelry

Ex: The Olympic medals are traditionally gold, silver , and bronze .
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iron
[noun]

a metallic chemical element with a silvery-gray appearance, widely used for making tools, steel, buildings, and various industrial products

Ex: Children need iron for proper growth and development .
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lead
[noun]

a heavy soft metal, used in making bullets, in plumbing and roofing, especially in the past

Ex: The plumber replaced the lead pipes with modern alternatives to ensure the safety of the drinking water supply .
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acid
[noun]

a water-soluble chemical substance that contains Hydrogen and has a sour taste or corrosive feature with a PH less than 7

Ex: When dissolved in water, carbonic acid forms from carbon dioxide, contributing to the acidity of rainwater.
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catalyst
[noun]

(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself

Ex: In the Haber process , iron is used as catalyst to promote the synthesis of ammonia from nitrogen and hydrogen gases .
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chemical
[noun]

a substance or compound produced or used in a process involving chemistry

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element
[noun]

a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties

Ex: Carbon is a element found in all living organisms and many non-living materials .
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compound
[noun]

(chemistry) a substance that its molecules consist of two or more elements that are held together by a chemical bond

Ex: compounds are essential for life , like carbohydrates and proteins .
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(chemistry) to combine and form a compound with water molecules

Ex: The process of rusting occurs when iron metal hydrates by reacting with oxygen and water vapor in the air.
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mixture
[noun]

(chemistry) a combination of two or more substances without forming a chemical bond or any chemical reaction

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to adsorb
[Verb]

to take in a liquid, gas, or other substance from the surface chemically or physically

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balanced
[Adjective]

evenly distributed or in a state of stability

Ex: The therapist helped her achieve balanced emotional state through mindfulness techniques .
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to behave
[Verb]

(chemistry) to react in a particular way because of the laws

Ex: The behaves inertly under normal conditions , showing no significant reaction .
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bond
[noun]

a link that holds atoms or ions together in any molecule or crystal

Ex: Hydrogen bonds play a crucial role in the structure of DNA, contributing to its stability and the specificity of base pairing.
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to increase the rate of a chemical reaction

Ex: Certain metals , such as palladium and nickel , catalyze hydrogenation reactions in organic synthesis .
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a chemical or nuclear process that is self-sustained and its products cause other processes of the same kind

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(chemistry) a process in which several chemicals combine and form different substances

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(chemistry) to lose water molecules during a chemical reaction

Ex: During the synthesis of alcohols , the alkene molecule reacts with water to add an -OH group , while dehydrating to form an alcohol product .
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to heat a liquid and turn it into gas then cool it and make it liquid again in order to purify it

Ex: The plan is distill rainwater for a clean water source .
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equation
[noun]

(chemistry) a symbolic representation of a chemical reaction that consists of the reactants and products

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formula
[noun]

a set of conventional symbols that convey a fundumantal principle

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(chemistry) to become separated from the solvent in a solid form

Ex: The cooling process in the volcanic vent allowed minerals precipitate, creating stunning stalactites and stalagmites .
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the action of keeping something the way it is or in good condition

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reaction
[noun]

(chemistry) a process in which several chemicals combine and form different substances

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aluminum
[noun]

a light silver-gray metal used primarily for making cooking equipment and aircraft parts

Ex: The bicycle frame is made aluminum, making it easier to carry and maneuver compared to traditional steel frames .
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