19,916
edits
Changes
→About Alkenes
: [[Alkene]]s are long chains of [[Carbon]] [[atom]]s [[Covalent Bond|covalently bonded]] together with [[Double Bond|double]] and [[Single Bond|single bonds]] and [[Hydrogen]] [[atom]]s taking the remaining [[Chemical Bond|bonds]].
: [[Alkene]]s are referred to as [[Unsaturated Hydrocarbon|unsaturated hydrocarbons]] because the [[Double Bond|double bond]] means it is not [[Saturated Hydrocarbon|saturated]] (full) with [[Hydrogen]] [[atom]]s.
: [[Alkene Test|Testing for [[alkene'''alkenes''']]s can be done by adding them to [[Bromine Water]]. If the [[Bromine Water]] turns from orange to colourless, then an [[alkene]] is present. During this test the [[Bromine]] [[Chemical Reaction|react]]s with the [[alkene]] to form a [[Dibromoalkane]].
: [[Ethene]] + [[Bromine]] → [[Dibromoethane]]
: <chem>C2H4 + Br2 -> C2H4Br2</chem>