Chemical
Meanings and phrases
chemical
- relating to or used in chemistry; chemic
- of or made from or using substances produced by or used in reactions involving atomic or molecular changes
chemical
- material produced by or used in a reaction involving changes in atoms or molecules; chemical substance
Chemical Mace
- (trademark) a liquid that temporarily disables a person; prepared as an aerosol and sprayed in the face, it irritates the eyes and causes dizziness and immobilization; Mace
Chemical Weapons Convention
- a global treaty banning the production or acquisition or stockpiling or transfer or use of chemical weapons
n.
- international organization for chemical disarmament; administers the Chemical Weapons Convention; OPCW
n.
- (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved; chemical process; chemical change
n.
- the act of decomposing a substance into its constituent elements; qualitative analysis
- There he studied chemical analysis and smelting.
- They can be analyzed using the tools of chemical analysis, e.g.
- The on-board lab can perform chemical analysis of those water samples.
n.
- the force attracting atoms to each other and binding them together in a molecule; affinity
n.
- a beam balance of great precision used in quantitative chemical analysis; analytical balance
n.
- a bomb laden with chemical agents that are released when the bomb explodes; gas bomb
n.
- an electrical force linking atoms; bond
- A chemical bond is an attraction between atoms.
- This attraction constitutes the chemical bond.
- Niels Bohr proposed a model of the atom and a model of the chemical bond.
n.
- (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved; chemical process; chemical action
n.
- (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight; compound
- The oil contains the chemical compound apiole.
- The pure chemical compound has a melting point between and .
- Thionazin Thionazin is a chemical compound used in nematicides.
n.
- (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance; decomposition; decomposition reaction
n.
- procedures involved in taking defensive measures against attacks using chemical agents; chemical defense
n.
- procedures involved in taking defensive measures against attacks using chemical agents; chemical defence
n.
- a mild form of diabetes mellitus in which there are no overt symptoms but there are abnormal responses to some diagnostic procedures; latent diabetes
n.
- any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter; element
- Caesium is the most electropositive chemical element.
- The atomic number uniquely identifies a chemical element.
- Helium atom A helium atom is an atom of the chemical element helium.
n.
- that part of the energy in a substance that can be released by a chemical reaction
- Ammonium nitrate has only 85% of the chemical energy of nitroglycerin.
- The plants also add some chemical energy to the fuel from biological molecules.
- Lithium borohydride is renowned as one of the highest energy density chemical energy carriers.
n.
- the branch of engineering that is concerned with the design and construction and operation of the plants and machinery used in industrial chemical processes
- the activity of applying chemistry to the solution of practical problems
- Bonython studied chemical engineering at Adelaide University.
- Its principles are especially important in chemical engineering.
- Degrees in chemical engineering from the University of Oklahoma.
n.
- a representation of a substance using symbols for its constituent elements; formula
- Its chemical formula is (sometimes written as MeHg).
- It is a polyatomic anion with the chemical formula .
- Note is the chemical formula for nitrous oxide.
n.
- (chemistry) two or more atoms bound together as a single unit and forming part of a molecule; group; radical
n.
- the manufacturers of chemicals considered collectively
- Thanks to coal mining, chemical industry was developed.
- The Tuzla district was renowned for its chemical industry.
- The chemical industry will depend on it.
n.
- warfare using chemical agents to kill or injure or incapacitate the enemy; chemical warfare
n.
- any natural phenomenon involving chemistry (as changes to atoms or molecules)
n.
- an industrial plant where chemicals are produced
- This shipment was coming from a US chemical plant to the IIBR under a US Department of Commerce license.
- They also perform functions in the areas of environmental quality control and the operational phase of a chemical plant.
- In 1965, the Agano River running through Niigata was polluted with methylmercury from the chemical plant of the Showa Electrical Company.
n.
- (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved; chemical change; chemical action
- is a chemical process for the removal of sulfur from a material.
- Today most blue pigments and dyes are made by a chemical process.
- The concrete solidifies and hardens through a chemical process called hydration.
n.
- a property used to characterize materials in reactions that change their identity
n.
- (chemistry) a process in which one or more substances are changed into others; reaction
- membrane filtration with the chemical reaction.
- This enzyme catalyses the following chemical reaction
- Partial oxidation (POX) is a type of chemical reaction.
n.
- the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions; chemistry
n.
- material produced by or used in a reaction involving changes in atoms or molecules; chemical
n.
- terrorism using the chemical agents of chemical warfare; can undermine the personal security of citizens
n.
- warfare using chemical agents to kill or injure or incapacitate the enemy; chemical operations
- It was investigated as a chemical warfare agent starting in 1940.
- Executive action on BW was followed by congressional action on chemical warfare (CW).
- On chemical warfare Nixon reaffirmed no-first-use of chemical weapons by the United States.
n.
- chemical substances that can be delivered using munitions and dispersal devices to cause death or severe harm to people and animals and plants
- Vomiting agent Vomiting agents are chemical weapon agents causing vomiting.
- Ethylene can be used in production of sulfur mustard gas, a chemical weapon.
- Methyldichloroarsine's only documented large-scale use is as a chemical weapon.
n.
- (chemistry) the principle that (at chemical equilibrium) in a reversible reaction the ratio of the rate of the forward reaction to the rate of the reverse reaction is a constant for that reaction; equilibrium law
n.
- chemical analysis to determine the amounts of each element in the substance; quantitative analysis
E.g.
- India declared its stock of chemical weapons in June 1997.
- It was once a center for the manufacture of chemical weapons.
- Some resisted and were reportedly sprayed with chemical weapons.
E.g.
- The enzyme then catalyzes the chemical step in the reaction and releases the product.
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- Catalysts accelerate chemical reactions.
- Kinetically, catalytic reactions are typical chemical reactions; i.e.
- Steric hindrance is the slowing of chemical reactions due to steric bulk.
E.g.
- Whereas its nominal formula is AlMgB, the chemical composition is closer to AlMgB.
- Its definition depends on the ways of expressing chemical composition of mixtures.
- The highest level in the classification of minerals is based on chemical composition.
E.g.
- This enzyme catalyses the following chemical reaction
- This enzyme catalyses the following chemical reaction This group of enzymes has similar specificities.
- This enzyme catalyses the following chemical reaction This enzyme belongs to the peptidase family M10.
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- Boron is primarily used in chemical compounds.
- It is also one of the chemical compounds found in castoreum.
- Alkanes are only weakly reactive with most chemical compounds.
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- This enzyme catalyses the following chemical reaction
- This enzyme catalyses the following chemical reaction This group of enzymes has similar specificities.
- This enzyme catalyses the following chemical reaction This enzyme belongs to the peptidase family M10.
E.g.
- Linear acetylenic carbon has the chemical structure −(C:::C)−.
- The chemical structure of proteins was still under debate at that time.
- The term was originally used to describe variations in chemical structure.
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- It has been shown to correlate with a number of other chemical properties.
- Dyes are classified according to their solubility and chemical properties.
- Cooking involves a manipulation of the chemical properties of these molecules.
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- Her father was a chemical engineer, her mother a nurse.
- The younger William Webster trained as a chemical engineer.
- James Wei (engineer) James Wei (born 1930) is an American chemical engineer.
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- For pure chemical elements, polymorphism is known as allotropy.
- The following sortable table shows the 118 known chemical elements.
- For 80 of the chemical elements, at least one stable isotope exists.
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- This results from a combination of physical and chemical processes.
- These interactions can be roughly divided into physical and chemical interactions.
- Once deposited, physical and chemical weathering can alter the state of preservation.
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- The United States Army re-evaluated its chemical and biological weapons programs in 1961.
- The Deseret project required a joint task force to undertake overseas chemical and biological testing.
- Various chemical and biological methods have been considered, tested and/or employed to fight the weeds.
E.g.
- Ploughing and the use of chemical fertilisers has also contributed to their loss.
- Ploughing and the use of chemical fertilisers have also contributed to their loss.
- The U.S. policy on the use of chemical weapons is to reserve the right to retaliate.
E.g.
- This results from a combination of physical and chemical processes.
- Coal to chemical processes require substantial quantities of water.
- The term originated with the industrial designing of chemical processes.
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- Agriculture & Nutrition Company (THAN) was a California chemical company.
- Yara International Yara International ASA is a Norwegian chemical company.
- In 1928, IG Farben was the world's fourth-largest company and its largest chemical company.
E.g.
- (where "μ" is the standard chemical potential).
- where "μ" is in this case a partial molar Gibbs energy, a chemical potential.
- The chemical potential of a reagent A is a function of the activity, {A} of that reagent.
E.g.
- Glycine is an intermediate in the synthesis of a variety of chemical products.
- IMRL's principal commodities included steel, coal, agricultural and chemical products.
- Many other chemical products are generated by large-scale reduction, often via hydrogenation.
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- It is the precursor to manganese metal and many other chemical compounds.
- It has been shown to correlate with a number of other chemical properties.
- For example, the hydrolysis of ATP is often used to drive other chemical reactions.
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- A chemical attack in Douma occurred on 7 April 2018.
- Russia has said video of the chemical attack was staged by members of the White Helmets.
- It is resistant to dissolution or chemical attack, even in the acidic contents of the digestive tract.
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- Typical process plants include oil refineries, paper mills, and chemical plants.
- The role of the chemical engineer was the design of these chemical plants and processes.
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- Their merger is called chemical synthesis or an addition reaction.
- muscle contraction, nerve impulse propagation, and chemical synthesis.
- The "" form can be made via chemical synthesis but has no significant biological role.
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- These two isomers of butene are slightly different in their chemical and physical properties.
- Plant physiology encompasses all the internal chemical and physical activities of plants associated with life.
- Its breakdown products and metabolites, DDE and DDD, are also persistent and have similar chemical and physical properties.
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- UV-C radiation is able to break down chemical bonds.
- Chemical reactions usually involve the making or breaking of chemical bonds.
- They can then release this energy by breaking chemical bonds, thereby producing radicals.
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- Numerous chemical substances influence the IELT.
- In addition the Chemical Abstracts Service has devised a method to index chemical substances.
- Electrostatics are used to describe bond polarities and the effects they have on chemical substances.
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- There are no known chemical agents available to treat the disease.
- Each of the CAIS held between one and five different chemical agents.
- Various chemical agents are a threat, such as nerve gas (VX, Sarin, and so on.).
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- Common air was then a mixture of two distinct chemical species with quite different properties.
- Some of these chemical species are consumed by photosynthetic organisms that remove carbon from the cycle.
- dissipative energy use, of a thermodynamic system or working body of chemical species during a change of state.
E.g.
- Pivalic acid is sometimes used as an internal chemical shift standard for NMR spectra of aqueous solutions.
- This abnormal electron density affects the applied magnetic field and causes the observed chemical shift to change.
- In NMR spectroscopy, the orientation of nuclei with respect to the applied magnetic field determines their chemical shift.
E.g.
- degree in chemical engineering in 1925 and a Master of Science (M.S.)
- He earned a Bachelor of Science degree in chemical engineering in 1947.
- Loheni has a degree in chemical engineering from the University of Auckland.
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- A schematic diagram for chemical vapor deposition set up is shown in Fig.
- Another popular method of growing synthetic diamond is chemical vapor deposition (CVD).
- The fibers can be produced by chemical vapor deposition of boron on a tungsten filament.
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- Each of the CAIS held between one and five different chemical agents.
- They have different names because, as diastereomers, they have different chemical properties.
- The different chemical compositions make the glaze to produce different results from batch to batch.
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- He said how "biological and chemical weapons are probable and relatively easy to disperse."
- Throughout science the term decipherment is synonymous with the understanding of biological and chemical phenomena.
- The biological and chemical weapons developed during that period were tested at the Dugway Proving Grounds in Utah.
E.g.
- SNF is one of the major chemical companies in France.
- Goldschmidt AG is now part of the Degussa group of chemical companies .
- Other chemical companies, including Ineos (formerly ICI), have plants at Runcorn.
E.g.
- A schematic diagram for chemical vapor deposition set up is shown in Fig.
- Another popular method of growing synthetic diamond is chemical vapor deposition (CVD).
- The fibers can be produced by chemical vapor deposition of boron on a tungsten filament.
E.g.
- In the past this was an important centre for the iron and steel, and chemical industries.
- It produces a variety of basic chemicals supplied to chemical industries, in Japan and abroad.
- Economically, the area developed heavy and chemical industries based on abundant hydroelectric electricity.
E.g.
- Other industries included brickworks, chemical works, tinplate works and timber yards.
- The long-established chemical works of Celenese(formally Accordis and Courtaulds) are the northern bank, towards Spondon.
- This line, branching off the WCR route 1 mile 14 chains south of Northwich Junction, primarily served the Brunner Mond chemical works.
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- This law featured the world's first new chemical pre-examination system.
- All chemical reactions involve both the breaking of existing and the making of new chemical bonds.
- A third common theory is Lewis acid-base theory, which is based on the formation of new chemical bonds.
E.g.
- He is kind of short-tempered, truculent and works in a chemical factory.
- Pervomaiskyi was planned as a colony for the workers and clerical staff of the Khimprom chemical factory.
- He obtained his education in Königsberg and Berlin, later serving as a director of a chemical factory in Liesing (Vienna).