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Academic IELTS (Band 8 and Above) - Chemistry

Here, you will learn some English words related to Chemistry that are necessary for the Academic IELTS exam.

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Vocabulary for Academic IELTS (8)
solute

a substance that is dissolved in a solvent, resulting in a solution

[noun]
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reactant

a substance that takes part in and undergoes a chemical reaction, leading to the formation of new products

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catalyst

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

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catalysis

the acceleration or facilitation of a chemical reaction by a substance (catalyst) that remains unchanged at the end of the reaction

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covalent bond

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

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isomer

any of two or more compounds having the same molecular formula but different arrangements of atoms and, consequently, different properties

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polymer

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

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monomer

a molecule that can chemically bond with other molecules to form a polymer

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hydrocarbon

a compound composed of hydrogen and carbon atoms, with the simplest form being alkanes, alkenes, or alkynes

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ester

a chemical compound derived from the reaction between an alcohol and an organic acid, typically with the elimination of water

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aldehyde

an organic compound with a carbonyl group (C=O) bonded to a hydrogen atom and another carbon atom, commonly found in essential oils and used in various chemical processes

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alcohol

a compound with a hydroxyl group (-OH) attached to a carbon atom, widely used as solvents, fuels, and in pharmaceutical and chemical synthesis

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ketone

an organic compound with a carbonyl group (C=O) bonded to two carbon atoms, commonly found in solvents, pharmaceuticals, and flavorings

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oxidation-reduction

a chemical reaction where electrons are transferred between substances

[noun]
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molarity

the concentration of a solute in a solution, measured in moles per liter (mol/L or M)

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electrolyte

a substance that, when dissolved in a solution, produces ions and enables the conduction of electric current

[noun]
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enthalpy

a thermodynamic quantity representing the total heat content of a system, commonly denoted as H

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entropy

a thermodynamic measure of the degree of disorder or randomness in a system, denoted by S

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colloid

a mixture where small particles of one substance are evenly dispersed in another substance, typically intermediate in size between solution and suspension particles

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corrosion

the gradual destruction of materials by chemical reaction, usually of metals

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alkali

any substance with a pH of more than seven that neutralizes acids creating salt and water

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