Alkenes (HSC SSCE Chemistry): Flashcards

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Alkenes
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Definition of alkenes

Hydrocarbons with a carbon-carbon double bond

Ending of all alkene names

-ene

Classification of alkenes

Unsaturated hydrocarbons

General formula of alkenes

CnH2nC_nH_{2n}

Atoms present in alkenes

Only carbon and hydrogen

Molecular formula of ethene

C2H4C_2H_4

Pattern in alkene homologous series

Each member adds a CH2CH_2 unit

Priority when numbering alkene carbon chain

Number from end closest to double bond

Total bonds each carbon atom must have

4 bonds

Positional isomers definition in alkenes

Same formula, different double bond position

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