Key points for OCR AS chemistry Unit 2 (ideal for flash cards, podcasts or just general reviewing) (1)

These are handy key points to help during those last minutes of revision, can also be cut into flashcards or turned into podcasts. These are from the OCR AS chemistry exam cafe cd, containing information from the text book, provided by the authors Dave gent and Rob Richie

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  • Created by: Ike Okoye
  • Created on: 04-06-10 12:31

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Key points for OCR AS chemistry Unit 2 (ideal for flash cards, podcasts or just general
reviewing) (1)

1. Representing organic compounds

· The empirical formula is the simplest whole-number ratio of atoms of each element present in a
compound.

· The molecular formula is the actual number of atoms…

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5. Alkenes

· Alkenes are unsaturated hydrocarbons; they consist of one or more carbon double bonds, making
them more reactive than alkanes.

· A double bond consists of a sigma and a pi bond. The pi bond is formed by the adjacent overlap of
p-orbitals.

· The pi bond is…

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