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Seznam Slovíček Úrovně C2 - Chemistry

Zde se naučíte všechna základní slova pro mluvení o chemii, shromážděná speciálně pro studenty úrovně C2.

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CEFR C2 Vocabulary
entropy
entropy
[Podstatné jméno]

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

entropie, termodynamický nepořádek

entropie, termodynamický nepořádek

Ex: When ice melts into water at a higher temperature, the entropy of the system increases. 
solute
solute
[Podstatné jméno]

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

rozpuštěná látka, solut

rozpuštěná látka, solut

Ex: In saltwater, salt (NaCl) is the solute that dissolves in water, the solvent. 
reactant
reactant
[Podstatné jméno]

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

reaktant

reaktant

Ex: In photosynthesis, carbon dioxide (CO₂) and water (H₂O) are the reactants that, in the presence of sunlight, produce glucose (C₆H₁₂O₆) and oxygen (O₂). 
catalyst
catalyst
[Podstatné jméno]

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

katalyzátor, aktivátor

katalyzátor, aktivátor

Ex: Enzymes are naturally occurring biological catalysts that allow complex metabolic reactions to proceed efficiently in living cells. 
catalysis
catalysis
[Podstatné jméno]

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

katalýza, katalytické zrychlení

katalýza, katalytické zrychlení

Ex: Enzymatic catalysis plays a key role in biological processes, including the synthesis and breakdown of biomolecules in living organisms. 
covalent bond
covalent bond
[Podstatné jméno]

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

kovalentní vazba, elektronová vazba

kovalentní vazba, elektronová vazba

Ex: Covalent bonds are like atoms sharing electron hugs to stick together. 
isomer
isomer
[Podstatné jméno]

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

izomer, izomerní sloučenina

izomer, izomerní sloučenina

Ex: Propanol and isopropanol are isomers, sharing the same molecular formula but differing in the arrangement of their atoms. 
polymer
polymer
[Podstatné jméno]

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

polymer, makromolekula

polymer, makromolekula

Ex: Polyethylene is a common polymer used in the production of plastic bags, bottles, and various packaging materials. 
monomer
monomer
[Podstatné jméno]

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

monomer, monomerní molekula

monomer, monomerní molekula

Ex: Ethylene is a monomer that polymerizes to form polyethylene, a widely used plastic. 
hydrocarbon
hydrocarbon
[Podstatné jméno]

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

uhlovodík, sloučenina vodíku a uhlíku

uhlovodík, sloučenina vodíku a uhlíku

Ex: Methane (CH₄) is the simplest hydrocarbon, belonging to the alkane group. 
ester
ester
[Podstatné jméno]

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

ester, chemický ester

ester, chemický ester

Ex: Ethyl acetate, an ester, is commonly used as a solvent in nail polish removers. 
aldehyde
aldehyde
[Podstatné jméno]

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

aldehyd, karbonylová sloučenina

aldehyd, karbonylová sloučenina

Ex: Acetaldehyde is an aldehyde with a fruity odor, often used in the synthesis of chemicals. 
alcohol
alcohol
[Podstatné jméno]

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

alkohol, ethanol

alkohol, ethanol

Ex: Ethanol is the alcohol found in alcoholic beverages and is commonly used as a solvent. 
ketone
ketone
[Podstatné jméno]

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

keton, karbonylová sloučenina

keton, karbonylová sloučenina

Ex: Acetone is a common ketone widely used as a solvent and nail polish remover. 
oxidation-reduction
oxidation-reduction
[Podstatné jméno]

a chemical reaction where electrons are transferred between substances

oxidace-redukce, oxidačně-redukční reakce

oxidace-redukce, oxidačně-redukční reakce

Ex: The combustion of wood is an oxidation-reduction reaction where wood undergoes oxidation, producing carbon dioxide and water. 
molarity
molarity
[Podstatné jméno]

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

molární koncentrace, molární koncentrace

molární koncentrace, molární koncentrace

Ex: A solution with a molarity of 0.5 M means there are 0.5 moles of solute in each liter of the solution. 
electrolyte
electrolyte
[Podstatné jméno]

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

elektrolyt, elektrolytická látka

elektrolyt, elektrolytická látka

Ex: Sodium chloride (NaCl) is a common electrolyte that dissociates into sodium ions (Na⁺) and chloride ions (Cl⁻) in solution. 
colloid
colloid
[Podstatné jméno]

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

koloid, koloidní disperze

koloid, koloidní disperze

Ex: Fog consists of small water droplets dispersed in the air, forming a colloid. 
corrosion
corrosion
[Podstatné jméno]

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

koroze

koroze

Ex: The pipes in the old house were heavily damaged by corrosion, resulting in leaks throughout the plumbing system. 
alkali
alkali
[Podstatné jméno]

any water-soluble compound that can turn litmus blue and reacts with an acid to form a salt and water

alkálie, zásada

alkálie, zásada

Ex: Sodium hydroxide is a strong alkali commonly used in soap making. 
ammonia
ammonia
[Podstatné jméno]

a sharp-smelling gas made of nitrogen and hydrogen

amoniak, dusík a vodík plyn

amoniak, dusík a vodík plyn

Ex: Ammonia has a strong, sharp odor that can irritate the eyes and throat. 
alloy
alloy
[Podstatné jméno]

a combination of two or more metals, creating a metal that is usually stronger or more resistant

slitina

slitina

Ex: An alloy is a mixture of two or more metals or a metal and another element. 
halogen
halogen
[Podstatné jméno]

a type of chemical element found in Group 17 of the periodic table, known for being highly reactive and commonly used in disinfectants and lights

halogen, halogenový prvek

halogen, halogenový prvek

Ex: Chlorine is a halogen commonly used in water treatment for its disinfectant properties. 
isotope
isotope
[Podstatné jméno]

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

izotop, izotopická forma

izotop, izotopická forma

Ex: Carbon-12 and carbon-14 are isotopes of carbon, with the former having 6 neutrons and the latter having 8 neutrons. 
noble gas
noble gas
[Podstatné jméno]

any of the elements in Group 18 of the periodic table, including helium, neon, argon, krypton, xenon, and radon, characterized by their inert nature and stable electron configurations

vzácné plyny, inertní plyn

vzácné plyny, inertní plyn

Ex: Helium, a noble gas, is known for its low density and is often used in balloons to make them float. 
emulsion
emulsion
[Podstatné jméno]

a mixture of two liquids where tiny droplets of one are evenly dispersed in the other, like oil in water

emulze, směs dvou kapalin

emulze, směs dvou kapalin

Ex: Mayonnaise is an example of an emulsion, with oil and vinegar forming a stable mixture through the addition of egg yolk as an emulsifying agent. 
half-life
half-life
[Podstatné jméno]

the time required for half of a quantity of a substance to undergo a change or decay, typically in the context of radioactive decay or chemical reactions

poločas rozpadu, poločas přeměny

poločas rozpadu, poločas přeměny

Ex: The half-life of a radioactive isotope determines the time it takes for half of the initial amount to decay into a stable product. 
depleted uranium
depleted uranium
[Podstatné jméno]

a type of uranium that has most of its more radioactive isotopes removed, primarily used for armor-piercing ammunition and shielding

ochuzený uran, vyčerpaný uran

ochuzený uran, vyčerpaný uran

Ex: Depleted uranium is a byproduct of the uranium enrichment process used in nuclear reactors. 
solvent
solvent
[Podstatné jméno]

a liquid that is capable of dissolving another substance

rozpouštědlo, solvent

rozpouštědlo, solvent

Ex: Ethanol is commonly used as a solvent to dissolve oils and perfume essences for the production of aftershaves and colognes. 
charged
charged
[Přídavné jméno]

having an electric charge

nabitý, elektrizovaný

nabitý, elektrizovaný

Ex: The metal sphere became charged when it was rubbed with a woolen cloth. 
combustion
combustion
[Podstatné jméno]

a chemical reaction between a fuel and an oxidizing agent, typically producing heat and light

hoření, spalování

hoření, spalování

Ex: The combustion of wood in the fireplace provided warmth and a cozy atmosphere in the living room. 
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