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Soot
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: Many [[particle]]s of [[soot]] build up to form a layer of black powder.
: During the industrial revolution soot built up on [[tree]]s which caused the white moths to be visible to predators. After a few years [[Evolution by Natural Selection|natural selection]] had killed off all the white moths while a [[mutation]] caused some moths to be black, allowing them to survive.
: [[Soot]] is [[product|produced]] in the following [[Incomplete Combustion|incomplete combustion]] [[Chemical Reaction|reactions]]:
: [[Methane]] + [[Oxygen]] → [[Soot]] + [[Water]]
<math>CH4 + O2 → C + 2H2O</math>
: [[Ethane]] + [[Oxygen]] → [[Soot]] + [[Water]]
<math>2C_2H_6 + 3O_2 → 4C + 6H_2O</math>
: [[Ethane]] + [[Oxygen]] → [[Soot]] + [[Carbon Monoxide]] + [[Water]]
<math>2C_2H_6 + 4O_2 → 2C + 2CO + 6H_2O</math>
: [[Ethene]] + [[Oxygen]] → [[Soot]] + [[Water]]
<math>C_2H_4 + O_2 → 2C + 2H_2O</math>
: [[Ethene]] + [[Oxygen]] → [[Soot]] + [[Carbon Monoxide]] + [[Water]]
<math>2C_2H_4 + 3O_2 → 2C + 2CO + 4H_2O</math>
: [[Methanol]] + [[Oxygen]] → [[Soot]] + [[Water]]
<math>2CH_3OH + O2 → 2C + 4H_2O</math>
: [[Ethanol]] + [[Oxygen]] → [[Soot]] + [[Water]]
<math>C_2H_5OH + O_2 → 2C + 3H_2O</math>
: [[Ethanol]] + [[Oxygen]] → [[Soot]] + [[Carbon Monoxide]] + [[Water]]
<math>2C_2H_5OH + 3O_2 → 2C + 2CO + 6H_2O</math>
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Soot, page 238, GCSE Chemistry, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Soot, pages 181, GCSE Combined Science Trilogy 2, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Soot, pages 202-203, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Soot, page 139, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Soot, page 89, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']