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ALKANE. REACTIONS. REACTION. MECHANISM. REACTION MECHANISM. Is a step by step description of how a chemical reaction occurs. SUBSTITUTION. REACTION. SUBSTITUTION REACTION. Is a chemical reaction in which an atom or group on a molecule is replaced by another atom or group.
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ALKANE REACTIONS
REACTION MECHANISM
REACTION MECHANISM • Is a step by step description of how a chemical reaction occurs.
SUBSTITUTION REACTION
SUBSTITUTIONREACTION • Is a chemical reaction in which an atom or group on a molecule is replaced by another atom or group. NOTE: replacement by a halogen is called HALOGENATION reaction …..
EXAMPLE GENERAL FORMULA Alkane + Halogen -----------→ Haloalkane + Hydrogen Halides light heat H │ H – C – Cl │ H H │ H – C – H │ H Cl – Cl light Cl2 --------→ + H – Cl + heat HYDROGEN CHLORIDE chloromethane METHANE methylchloride
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COMBUSTION REACTION
COMBUSTIONREACTION • Is a chemical reaction wherein hydrocarbon reacts with oxygen and produces Carbon Dioxide and water. NOTE: great amount of heat is released in this reaction…..
EXAMPLE GENERAL FORMULA Hydrocarbon (Alkane) + Oxygen -----------→ Carbon Dioxide + Water CH4 + O2 2 2 --------→ CO2 H2O + METHANE 2 C2H6 O2 + --------→ + 7 4 CO2 6 H2O ETHANE
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