Chapter 22: Alkenes and Acids

Alkenes

________ normally combust completely if theres enough oxygen.

Ethanol

________ and water have a higher boiling point then ethene so both condense whilst any unreacted ethene gas is recycled back into the reactor.

Molecules

________ formed are saturated, with the C= C carbons each becoming bonded to a halogen atom.

Water

________ is added across the double bond and an alcohol is formed.

carbon carbon double bond

The ________ will open up and add additional atoms on.

addition of bromine

The ________ to a double bond can be used to test for alkenes.

Alkenes + oxygen

carbon + carbon monoxide + carbon dioxide + water(+energy)

What do alkenes burn with

Smokey yellow flame

Incomplete combustion left hand side

Alkene and oxygen

Incomplete combustion right hand side

Carbon, carbon monoxide, carbon dioxide and water

Hydrogen reaction with alkenes

Hydrogenation, forms equivalent saturated alkene

Steam reaction with alkenes

Water added across double bond makes alcohol formed

Halogens react

Splits double bond and halogen bonds onto each carbon

Halogens

Group 7

Addition reactions

New atoms are added

Functional group

A group of atoms on a molecule that determine how that molecule will react