Alkenes
- Created by: Nicole Anna Morrison
- Created on: 11-03-18 18:53
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- Alkenes
- Have a C=C double bond
- C=C bond can open up to make a single bond
- Allowing two carbon atoms to bond with other atoms
- This makes them more reactive than alkanes
- Allowing two carbon atoms to bond with other atoms
- C=C double bond means aliens have two fewer hydrogens compared with alkanes containing the same number of carbon atoms.
- C=C bond can open up to make a single bond
- Alkenes burnt with smokey flame
- In large amounts of oxygen, alkenes combust completely to produce only water and C02
- But there isn't enough oxygen in the air for this, so they undergo incomplete combustion
- Now carbon and carbon monoxide are also produced
- Smokey yellow flame and less energy than complete combustion
- But there isn't enough oxygen in the air for this, so they undergo incomplete combustion
- Alkene+Oxygen --> carbon + carbon monoxide+ carbon dioxide + water (energy)
- In large amounts of oxygen, alkenes combust completely to produce only water and C02
- General formula for alkenes: CnH2n
- Have a C=C double bond
- But there isn't enough oxygen in the air for this, so they undergo incomplete combustion
- Now carbon and carbon monoxide are also produced
- Smokey yellow flame and less energy than complete combustion
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