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Ethene

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==Key Stage 4==

===Meaning===

[[Ethene]] is a [[gas]]eous ([[STP]]) [[~~hydrocarbon~~alkene]] with [[Chemical Formula|chemical formula]] C2H4.

===About Ethene===

{| class="wikitable"

|-

| style="height:20px; width:125px; text-align:center;" |[[Chemical Formula]] (CnH2n+2)

| style="height:20px; width:125px; text-align:center;" |[[Structural Formula]]

| style="height:20px; width:125px; text-align:center;" |[[Structural Diagram]]

: [[Ethene]] is [[hydrocarbon]] because it contains only [[Hydrogen]] and [[Carbon]] [[atom]]s.

: [[Ethene]] has a [[Double Bond|double bond]] between the two [[Carbon]] [[atom]]s.

: [[Ethene]] is described as 'unsaturated' due to the [[Double Bond|double bond]] as it is not completely 'saturated' by [[Hydrogen]] [[atom]]s like [[Ethane]].

: [[Ethene]] can be [[oxidise]]d to [[product|produce]] [[Carbon Dioxide]] and [[Water]].

: [[Ethene]] + [[Oxygen]] → [[Carbon Dioxide]] + [[Water]]

: <~~chem~~math>~~C2H4~~ C_2H_4 + ~~3O2 -> 2CO2~~ 3O_2 → 2CO_2 + ~~2H2O~~2H_2O</~~chem~~math> ===Ethene as a Plant Hormone===: The ripening of [[fruit]] is controlled by [[ethene]].: [[Ethene]] also affects the rate of [[Cell Division|cell division]]. ===Using Ethene as a Plant Hormone===: To make [[fruit]] last longer they are harvested before they are ripe. When the farmer wants to sell them they put [[ethene]] [[gas]] in their container causing them to ripen. ===References=======Edexcel==== :[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Ethene, page 75, GCSE Biology; The Revision Guide, CGP, Edexcel ''] ====OCR====:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Ethene, pages 112-113, Gateway GCSE Biology, Oxford, OCR '']

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