alkanes and alkenes
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12 Terms
alkanes general formula
Cn H2n+n
word beginning with s to describe alkanes
saturated
why are alkanes saturated
no c=c double bonds —> each carbon has made its maximum of 4 bonds
bonding in alkanes
covalent
alkane reaction with halogens
MUST BE IN UV RADIATION
substitution:
halogen + alkane —> halogenoalkane + hydrogen halide
example of ethane reaction with bromine
bromine + ethane —(UV)—> bromoethane + hydrogen bromide
alkene functional group
C=C
alkene general formula
Cn H2n
word beginning with u to describe alkenes
unsaturated - contains C=C double bonds
alkene reaction with bromine
addition:
alkene + bromine —> dibromoalkane
involves removal of carbon double bond
example of bromine reaction with ethene
ethene + bromine —> dibromoethane
difference between alkane and alkene reactions to bromine water
alkanes don’t react —> water remains orange
alkenes react —> water turns colourless
Note 
Flashcards (78)