Alkenes Flashcards
1
Q
Mixture of …..
A
Hydrogen and carbon atoms
2
Q
Name all the alkenes
A
Ethene: C2H4
Propene: C3H6
Butene: C4H8
3
Q
What bonds do they have
A
Double bonds
4
Q
Are they saturated or unsaturated
A
Unsaturated
5
Q
Polymer
A
A substance that has a molecular structure built up completely from a large number of similar units bonded together
6
Q
General formula
A
CnH2n
7
Q
Reaction of alkenes in bromine
A
Reacts slowly but only in UV light
Substitution reaction
Brown/orange colour of bromine changes to colourless
Delocalisation
CH4 + Br2 –> CH3Br + HBr