Alkenes are also called olefins ( an archaic synonym, widely used in the petrochemical industry ).

Alkenes are oxidized with a large number of oxidizing agents.

Alkenes and alkynes with more than one double or triple bond respectively are named with the appropriate numeric prefix preceding the-ene or-yne.

Alkenes are hydrocarbons that have one or more double bonds between carbon atoms.

Alkenes with a hydroxyl group on both sides of the double bond are called enediols.

Alkenes serve as a feedstock for the petrochemical industry because they can participate in a wide variety of reactions.

Alkenes react in many addition reactions, which occur by opening up the double-bond.

Alkenes react with water and halogens to form halohydrins by an addition reaction.

Alkenes can be ligands in metal complexes.

Alkenes also react with halogens ( X < sub > 2 </ sub >) to form haloalkanes with two neighboring halogen atoms in a halogen addition reaction.

Alkenes undergo many important reactions that proceed via a photon-induced π to π * transition.

Alkenes can be oxidized with ozone to form alcohols, aldehydes or ketones, or carboxylic acids.

But, here again, comparative benchmarks are lacking, and we do not know, in any case, what measure of profoundity and intensity to expect from healthy, young, secure and relatively inexperienced persons ; ;

Solid concrete blocks, relatively heavy and dense, are used for this shelter.

On the remainder of the clear channels, the dominant ( class 1 ) -- B stations are protected as described above, and the relatively small number of secondary ( class 2 ) ) stations permitted to operate on these channels at night are required to operate directionally and/or with reduced power so as to protect the class 1, stations.

Instead of relatively small sales to many accounts, there are now larger sales to or through fewer accounts.

Since charges are relatively the same, reserving a car before you leave for Europe will assure you of having one on tap when you want it.

and, in contrast, are present to a relatively immense degree on a segmental basis in the dog where lobules are absent ( Van Allen and Lindskog, '31 ).

Although the standard deviation values on which spread of the lines is based are relatively larger for those centers which begin to ossify early ( Table 1 ), there are considerable differences in this value between centers having the closely timed Onsets.

Since Af are distinct prime polynomials, the polynomials Af are relatively prime ( Theorem 8, Chapter 4 ).

Over a relatively short period of time, usually about four to twelve weeks, the worker must be able to shift the focus, back and forth, between immediate external stressful exigencies ( `` precipitating stress '' ) and the key, emotionally relevant issues ( `` underlying problem '' ) which are, often in a dramatic preconscious breakthrough, reactivated by the crisis situation, and hence once again amenable to resolution.

Although the Brandywine population is still predominantly rural, `` there are indications of a consistent and a statistically significant trend away from the older and relatively isolated rural communities.

If we have five problems whose solution we seek in relatively united fashion, then there are twice as many issues which, I judge, sharply divide us, intergroup relations practitioners and lay people.

However, there are relatively few such political constituencies, and, as has been pointed out, there is seldom a clear-cut distinction between the educational interests of one social class and those of another.

The big factories which are relatively near the centers of our cities -- the rubber factories in Akron, Chrysler's Detroit plants, U.S. Steel's Pittsburgh works -- often began on these sites at a time when that was the edge of the city, yet close to transport ( river ), storage ( piers ) and power ( river ).

Satires Of Circumstance and Moments Of Vision, coming during his most productive decade, are relatively self-contained ; ;

Since we are considering here relatively small diameter ( 1 - 1.5 inches ) fiber plates, their average thickness can be kept below 1/4 inch and their internal losses may be assumed as 15 percent ( per plate ).

Adolescents have a much-discussed tendency to polarize ideas and values, to perceive things as `` either-or '', black or white -- nuances of meaning are relatively unimportant.

Naturally, enterprises of the size of General Electric are in a position to structure their prices in such a way that the relatively small competitors can be forced to the wall in a very short time.

One of the ironies of the present crusade for Christian unity is that there are not, relatively speaking, many real Christians to unite.

Spectacular displays of this sort are relatively rare in the entire land surface of the earth.

treatment ) are relatively easy to interpret ; Unbalanced

In particular, this applies where large numbers of amateur astronomers with small telescopes are more effective than the relatively small number of large telescopes that are available to professional astronomers.

but this obligation pertains only to countries which are honestly seeking to become responsible members of a stable and forward-moving world community.

Theoretical calculations have predicted several argon compounds that should be stable, but for which no synthesis routes are currently known.

Four allotropes of antimony are known, a stable metallic form and three metastable forms, explosive, black and yellow.

Isotopes that are lighter than the stable < sup > 123 </ sup > Sb tend to decay by β < sup >+</ sup > decay, and those that are heavier tend to decay by β < sup >-</ sup > decay, with some exceptions.

All of its isotopes are short-lived ; the most stable is astatine-210, with a half-life of 8. 1 hours.

Six astatine isotopes, with mass numbers of 214 to 219, are present in nature as the products of various decay routes of heavier elements, but neither the most stable isotope of astatine ( with mass number 210 ) nor astatine-211 ( which is used in medicine ) is produced naturally.

Electrons that are bound to atoms possess a set of stable energy levels, or orbitals, and can undergo transitions between them by absorbing or emitting photons that match the energy differences between the levels.

Mono-and diolefins are often used as ligands in stable complexes.

Calcium ion ( Ca < sup >++</ sup >) antagonists ( Calcium channel blockers ) are used in the treatment of chronic stable angina.

Since the speed of sound varies with temperature, and is virtually stable with pressure change, sonic anemometers are also used as thermometers.

Staged vacuum systems are regularly employed to ensure that the system vacuum conditions remain stable.

Both stable and unstable isotopes of beryllium are created in stars, but these do not last long.

Coastal areas are generally milder and dry during summer, under the influence of stable anti-cyclonic high pressure much of the time.

This trivalent oxidation state (+ 3 ) is the most stable, especially in aqueous solutions, but tetravalent (+ 4 ) and possibly divalent (+ 2 ) berkelium compounds are also known.

Paired DNA and RNA molecules are comparatively stable at room temperature but the two nucleotide strands will separate above a melting point that is determined by the length of the molecules, the extent of mispairing ( if any ), and the GC content.

Thus filters designed in the continuous-time domain that are stable are converted to filters in the discrete-time domain that preserve that stability.

By a strange twist, the Benedictines were not a mendicant order, but a stable, monastery-based order, and single-volume breviaries are rare from this early period.

Balls marked " 1 " and " 3 " are in the two stable positions

The defining characteristic of bistability is simply that two stable states ( minima ) are separated by a peak ( maximum ).

Optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on the input.

Ninety – four different chemical elements or types of atoms based on the number of protons are observed on earth naturally, having at least one isotope that is stable or has a very long half-life.