AQA Chemistry C1b

These cards are all linked to the Oils, Earth and Atmosphere

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Products from Oil - Cracking Hydrocarbons

Cracking = Thermal Decomposition which takes place in a Catalytic Cracker(Kat Cracker) This breaks down larger alkane molecules into smaller alkane and at least 1 alkene>>>>>>e.g Heptane  

                                  H H H H H H H                      H H H H H                                                                    H-C-C-C-C-C-C-C-H  ---->>H-C-C-C-C-C-H  + H-C=C-H                                                 H H H H H H H                     H H H H H              H  H


Alkanes                                               Alkenes                                        Saturated (lots of hydrogen)           Unsaturated  (double bond) (=)     CnH2n+2                                       So contain less hydrogen             Do not react with bromine water     CnH2n                                                                                               

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Aishah Iqbal


not helpful =(



the last bit isn't very helpful

James Harrison


Tis Not The Type Of Assistance one Requires

Catherine Roberts


Confused me more :s



Doesnt help much to be honest the layout of the research is poor needs to be improved

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