0 any of a group of substances that contain only the elements carbon and hydrogen, which are held together by a chemical bond in which two atoms share two pairs of electrons --
1 any gas in a group that contains carbon and hydrogen atoms, with the carbon atoms joined together in a double bond: --
Ethene and propene are alkenes.
Първо изберете вашите езици От и До. След това въведете своя текст (до 360 знака при всеки път, до 6000 на ден) и щракнете върху Превод.
The data indicated that at least one alkene was present.
Paraffins are formed simultaneously with the alkene series but no acetylenic hydrocarbons have been detected.
All reactions proceed via an initial addition of the radical to alkenes, alkynes and aromatic species.
The relative proportions of alkenes were higher in this group (around 28 % versus 18 % of the total hydrocarbons).
The chemoselective ruthenium-catalysed olefin metathesis reaction was used to 'staple' together the two alkene tethers to provide peptides that maintain helical structure, but with enhanced stability.
Methane, a series of about 20 different alkenes with single and conjugated double bonds have been detected.
The epoxides are prepared by oxidation with hydrogen peroxide of the alkene.
The carbonyl group draws electrons away from the alkene, and the alkene group is, therefore, deactivated towards an electrophile, such as bromine or hydrochloric acid.
中文繁体
烯烴，鏈烯（碳原子以雙鍵連結的碳氫化合物）…
More中文简体
烯烃，链烯（双链链接碳氢化合物）…
MorePortuguês
alqueno…
MorePolski
alken…
MoreTürk dili
çiftli birleşimde bir araya gelmiş karbon atomlarıyla birlikte karbon ve hidrojen atomları içeren gaz grubuna ait olan…
MoreManaging Your Emotions
What makes me angry?
Какво ме ядосва?
Mostly，l hate when someone tries to make someone else feel bad.
Най-вече мразя, когато някой се опитва да накара някой друг да се чувства зле.
I have to admit that once, when l was actually called names.
Трябва да призная, че веднъж, когато наистина ме нарекоха.
l regretted doing this afterwards, but not full heartedly because l think l was provoked in that situation.
След това съжалявах, че го направих, но не искрено, защото смятам, че бях провокиран тази ситуация.
The most postive way of dealing with anger is talking about the problem.
Най-положителният начин за справяне с гнева е да говорите за проблема.
l talk to someone who listens, or l'll write my thoughts down on paper.
Говоря с някой, който ме слуша, или ще напиша мислите си на хартия.
Learning how to deal with anger as you're growing up is so important.
Да се научите как да се справяте с гнева, докато растете, е толкова важно.
When you're younger, you might yell,or cry when you're angry, but as you get older, you're expected to handle your emotions much better.
Когато си по-млад, може да крещиш или да плачеш, когато си ядосан, но когато остарееш, ти си се очаква да се справят с емоциите ви много по-добре.
Learning to control your emotion now will prevent you from doing something that you'll regret later on in life!
Ако се научите да контролирате емоциите си сега, ще ви попречи да направите нещо, което ще направите съжалявам по-късно в живота!
