rusting (1 Viewer)

crammy90 · Nov 1, 2008

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unctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w

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ontVertAlignInTxbx/> <w:Word11KerningPairs/> <w:CachedColBalance/> </w:Compatibility> <m:mathPr> <m:mathFont m:val="Cambria Math"/> <m:brkBin m:val="before"/> <m:brkBinSub m:val="--"/> <m:smallFrac m:val="off"/> <m:dispDef/> <m:lMargin m:val="0"/> <m:rMargin m:val="0"/> <m:defJc m:val="centerGroup"/> <m:wrapIndent m:val="1440"/> <m:intLim m:val="subSup"/> <m:naryLim m:val="undOvr"/> </m:mathPr></w:WordDocument> </xml><![endif]--><style>  </style> Fe<sup>2+</sup> + OH<sup>– </sup>--> Fe(OH)<sub>2(s) (after Fe oxidised and water + oxygen reduced)</sub>
<sub>
</sub>
<sub>then Fe2+ oxidised to fe3+
</sub>

1/2O<sub>2 </sub>+ 2Fe(OH)<sub> 2 (s)</sub> → 2Fe<sub>2</sub>O<sub>3</sub> .H<sub>2</sub>O+ H<sub>2</sub>O
it doesnt seem balanced this last equation, but i wrote it in trials and nothing happened
does any1 have a final balanced equation?
<o></o>

in 1 of the answers for past HSC it has "Fe2+ becomes oxidised to Fe3+ by surrounding oxygen which then dehydrates to become rust : Fe2O3.H2O -why isnt this hydrating if we are adding h2o thanks

tazzyboys · Nov 4, 2008

4Fe(OH)2 + O2 -> 2(Fe2O3.H2O) + 2H2O

rusting (1 Viewer)

crammy90

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