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Halvreaktion - Versionshistorik
2026-11-01T02:52:27Z
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https://wiki.guldforum.se/w/index.php?title=Halvreaktion&diff=7740&oldid=prev
Dan Olsson den 24 februari 2013 kl. 14.56
2013-02-24T14:56:33Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Versionen från 24 februari 2013 kl. 10.56</td>
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Dan Olsson
https://wiki.guldforum.se/w/index.php?title=Halvreaktion&diff=6147&oldid=prev
Dan Olsson: 1 version
2013-02-24T09:42:26Z
<p>1 version</p>
<p><b>Ny sida</b></p><div>'''Halvreaktion''' är en halv [[redox]]reaktion, där antingen reduktionsreaktionen eller oxidationsreaktionen redovisas. En halvreaktion kännetecknas av att den innehåller fria elektoner. Två motsatta halvreaktioner balanseras till en fullständig redoxreaktion.<br />
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== Exempel på halvreaktioner ==<br />
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: H<sub>2</sub> <math>\rightleftharpoons</math> 2H<sup>+</sup> + 2e<sup>-</sup> (oxidation)<br />
: O<sub>2</sub> + 2e<sup>-</sup> <math>\rightleftharpoons</math> 2O<sup>-</sup> (reduktion)<br />
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om dessa två halvreaktioner summeras, fås följande redoxreaktion:<br />
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: 2H<sub>2</sub> + O<sub>2</sub> <math>\rightleftharpoons</math> H<sub>2</sub>O<br />
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[[Kategori:Fysikalisk kemi]]<br />
[[Kategori:Kemiska reaktioner]]<br />
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[[ar:نصف تفاعل]]<br />
[[en:Half-reaction]]<br />
[[it:Semireazione]]<br />
[[nl:Halfreactie]]<br />
[[sr:Polureakcija]]<br />
[[fi:Puolireaktio]]<br />
[[zh:半反應]]</div>
Dan Olsson