addition and substitution reaction

hey guys...
i am in deperate need of help...
we did a practical in chemistry class about two weeks ago and tomorrow we need to hand in a report. problem is i was messing around durning the practical and basically have no clue what to do.

Practical outline:
You are required to show the difference in chemical reactivity between alkanes and alkenes and investigate unknown substances in terms of degeree of saturation.

Cyclohexane and Cyclohexene
bromine in CCl(4)
margerine in two types
Minaral Turpantine.

any help as to how to get sarted or what i shoul do would be greatly appreciated!!!
thanx in advance.


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