Chemical

Frases y oraciones de ejemplo

chemical reaction   (reacción química)

membrane filtration with the chemical reaction.

This enzyme catalyses the following chemical reaction

Partial oxidation (POX) is a type of chemical reaction.

chemical weapons   (armas químicas)

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.

catalyzes the chemical   (cataliza el químico)

The enzyme then catalyzes the chemical step in the reaction and releases the product.

chemical engineering   (Ingeniería Química)

Bonython studied chemical engineering at Adelaide University.

Its principles are especially important in chemical engineering.

Degrees in chemical engineering from the University of Oklahoma.

chemical reactions   (reacciones químicas)

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.

chemical compound   (compuesto químico)

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.

chemical formula   (fórmula química)

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.

chemical composition

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.

following chemical

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.

chemical compounds

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.

following chemical reaction   (siguiente reacción química)

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.

chemical industry

Thanks to coal mining, chemical industry was developed.

The Tuzla district was renowned for its chemical industry.

The chemical industry will depend on it.

chemical structure

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.

chemical properties

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.

chemical engineer

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.

chemical warfare

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.

chemical elements

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.

physical and chemical

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.

chemical 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.

chemical and biological

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.

use of chemical

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.

chemical plant

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.

chemical processes

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.

chemical company   (empresa química)

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.

chemical potential   (potencial químico)

(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.

chemical 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.

chemical products

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.

other chemical   (otro producto químico)

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.

chemical process

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.

chemical attack

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.

chemical plants

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.

chemical synthesis   (síntesis química)

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.

chemical and physical

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.

chemical bonds

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.

chemical energy

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.

chemical substances

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.

chemical agents

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.).

chemical species

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.

chemical shift   (cambio químico)

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.

degree in chemical

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.

chemical vapor   (vapor quimico)

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.

chemical weapon   (arma química)

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.

different chemical

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.

biological and chemical

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.

chemical companies

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.

chemical vapor deposition   (deposición química de vapor)

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.

chemical industries

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.

chemical works

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.

new chemical

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.

chemical factory

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).

chemical 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.