GCSE Chemistry (AQA)

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Alkene Names & Formulae

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Organic chemistry Reactions of alkenes and alcohols

Alkene Names & Formulae

10:05 Alkenes: Structure, Formula, and Reactions
Spec 4.7.2.1 4.7.2.2
Previous Cracking Next Reactions of Alkenes
  • Kines are hydrocarbons with a double carbon-carbon bond.
  • Alkanes are hydrocarbons with only single bonds between carbons.
  • Alkenes have at least one pair of carbons with a double bond.
  • Alkanes end in "A" and have only single bonds.
  • Alkenes end in "E" and have a double bond.
  • Specific hydrocarbons have suffixes indicating their type.
  • Ethane (alkane) has two carbons and single bonds.
  • Ethene (alkene) has two carbons and a double bond, affecting structure and hydrogen count.
  • The carbon-carbon double bond in alkenes is a functional group responsible for reactions.
  • Functional groups have unique characteristics and similar reactions.
  • Alkenes form a homologous series with the same general formula and functional group.
  • The first four alkenes are ethene, propene, butene, and pentene.
  • Alkenes have a general formula of CNH2N, where N is the number of carbon atoms.
  • The molecular formula of alkenes shows hydrogen atoms double the carbon atoms.
  • Structural formulas of alkenes include a double carbon-carbon bond.
  • Alkenes can have multiple structural forms with the same molecular formula.
  • Alkanes are saturated hydrocarbons with maximum hydrogen atoms.
  • Alkenes are unsaturated hydrocarbons with fewer hydrogen atoms due to the double bond.
  • Alkenes are unsaturated compared to corresponding saturated alkanes.

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