http://www.bbc.co.uk/schools/gcsebitesize/science/triple_aqa/alcohols_carboxylic_acids_esters/alcohols/revision/1/
http://www.cliffsnotes.com/sciences/chemistry/organic-chemistry-i/structure-and-properties-of-alkanes/alkanes-physical-properties
http://www.sparknotes.com/chemistry/organic2/alkanes/section2.rhtml
http://www.ucc.ie/academic/chem/dolchem/html/dict/alkenes.html
https://answers.yahoo.com/question/index?qid=20110117135456AAjcXaZ
http://en.wikipedia.org/wiki/Ethanol_fermentation
http://www.answers.com/Q/What_are_alkanes_used_for
Notes
http://www.cliffsnotes.com/sciences/chemistry/organic-chemistry-i/structure-and-properties-of-alkanes/alkanes-physical-properties
http://www.sparknotes.com/chemistry/organic2/alkanes/section2.rhtml
http://www.ucc.ie/academic/chem/dolchem/html/dict/alkenes.html
https://answers.yahoo.com/question/index?qid=20110117135456AAjcXaZ
http://en.wikipedia.org/wiki/Ethanol_fermentation
http://www.answers.com/Q/What_are_alkanes_used_for
Notes