C10.1 Reactions of alkenes
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What do all organic molecules contain?
Carbon
What is a functional group?
It gives a family of organic compounds their characteristic reactions
What is a homologous series?
Where organic compounds have the same functional group
What is the general formula of the alkenes?
C(n)H(2n)
Why are alkenes not used as fuels?
They release less energy per mole in combustion than alkanes
What happens to the carbon double bond in the addition reaction of alkenes?
The double bond gets broken and the molecules that they reacted with get added into the carbon compound
What does ethene + bromine make?
Dibromoethane
What does an addition of hydrogen make when reacted with an alkene?
Alkane
What does pentene + hydrogen make?
pentane
What conditions are need for an alkene to react with hydrogen to make an alkane?
Nickel catalyst 60 degrees temperature
What is the purpose of adding hydrogen across the double carbon bond?
To straighten the unsaturated oils molecules and increase the melting point
What does an alkene + steam make?
An alcohol
How is ethanol made?
Ethene + steam
Is the reaction to make an alcohol reversible or irreversible?
Reversible