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Weak Brønsted acids such as water (pKa = 15.7) and acetic acid (pKa = 4.75) do not normally add to alkenes. However, the addition of a strong acid serves to catalyze the addition of water, and in this way alcohols may be prepared from alkenes.
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www.cem.msu.edu/~reusch/VirtualText/addene1.htm
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Alkenes area class of HYDROCARBONS which contain only carbon and hydrogen. Two other terms which describe alkenes are unsaturated and olefins. ... Alkenes are also called OLEFINS because they form oily liquids on reaction with chlorine gas.
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www.elmhurst.edu/~chm/vchembook/503alkenes.html
www.elmhurst.edu/~chm/vchembook/503alkenes.html
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An introduction to the alkenes, their reactivity and their physical properties. ... Making alkenes . . . ... Making alkenes in the lab from alcohols.
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www.chemguide.co.uk/organicprops/alkenemenu.html
www.chemguide.co.uk/organicprops/alkenemenu.html
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Background on the alkenes, including their physical properties ... INTRODUCING ALKENES ... This is an introductory page about alkenes such as ethene, propene and the rest. It deals with their formulae and isomerism, their physical properties, and an introduction to their chemical reactivity.
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www.chemguide.co.uk/organicprops/alkenes/background.htm...
www.chemguide.co.uk/organicprops/alkenes/background.html
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Alkenes - a class of hydrocarbons that contain carbon - carbon double bonds. The general formula for noncyclic alkenes that contain a only one double bond is CnH2n. Alkene names end with the suffix -ene. The prefix depends on the number of carbons in the chain (click here for the prefix table).
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cas.bellarmine.edu/chem116a/resources/alkenes.htm
cas.bellarmine.edu/chem116a/resources/alkenes.htm
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Open chain alkenes with one double bond have the general formula, CnH2n, where n equals the number of carbon atoms. Open chain alkynes with one triple bond have the general formula, CnH2n - 2. Like the alkanes and other hydrocarbons, they are insoluble in water and are flammable.
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library.thinkquest.org/3659/orgchem/alkenes-alkynes.htm...
library.thinkquest.org/3659/orgchem/alkenes-alkynes.html
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Alkenes are very useful compounds. Major uses are, ... Lower alkenes are used as fuel and illuminant. These may be obtained by the cracking of kerosene or petrol. ... uses of alkenes ethene...
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www.tutorvista.com/content/chemistry/chemistry-iii/hydr...
www.tutorvista.com/content/chemistry/chemistry-iii/hydrocarbons/alkenes-uses.php
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Nomenclature Alkenes contain double bonds and alkynes contain triple bonds. The lUPAC suffixes are -ene for alkenes and -yne for alkynes. ... Geometry of Alkenes. In alkenes, the double-bonded carbons and the four groups attached to these carbons lie in the same plane. Because rotation about the double bond is...
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www.cofc.edu/~deavorj/102/notes/organic/alkenes.html
www.cofc.edu/~deavorj/102/notes/organic/alkenes.html
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Aliphatic hydrocarbons with one double bond between carbons are called alkenes. They follow the naming convention of the alkanes except that the suffix -ene is used instead of -ane. For alkenes above propene the position of the double bond must be specified in the name.
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hyperphysics.phy-astr.gsu.edu/hbase/Organic/alkene.html
hyperphysics.phy-astr.gsu.edu/hbase/Organic/alkene.html
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