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ALKANE

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

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  1. ALKANE REACTIONS

  2. REACTION MECHANISM

  3. REACTION MECHANISM • Is a step by step description of how a chemical reaction occurs.

  4. SUBSTITUTION REACTION

  5. 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 …..

  6. 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

  7. iNDUSTRIAL APPLICATIONS

  8. COMBUSTION REACTION

  9. 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…..

  10. 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

  11. iNDUSTRIAL APPLICATIONS

  12. Do U want to PLAY a game?

  13. Mechanics • D’ class will be divided into 2 groups • BOYS & GIRLS • Each group will be represented by a leader • I will be D’ one flashing D’ instructions on screen • Then, U will be D’ one to execute the given instructions. • U will be given 20 seconds 2 answer. • The winning group will receive a GIFT that • will be revealed tomorrow.

  14. EXAMPLE 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a sequence of reactions to produce “trichlorofluoromethane” and commonly known as FREON 11.

  15. D’ game starts Now………

  16. ITEM # 1 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a sequence of reactions to produce “dichlorodifluoromethane” or commonly known as FREON 12.

  17. ITEM # 2 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a combustion reaction of “octane gas” a common reaction that take placed In a car engine.

  18. ITEM # 3 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a sequence of reactions to produce “1,1,1,2 – tetrafluoroethane” or commonly known as HFC 134a.

  19. ITEM # 4 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a combustion reaction of “nonane gas” an alkane that usually used in some industrial processes.

  20. ITEM # 5 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a sequence of reactions to produce “2,2 – dichloro – 1,1,1 – trifluoroethane” or commonly known as HCFC 123.

  21. ITEM # 6 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a combustion reaction of “decane gas” an alkane that usually used in some industrial processes.

  22. ITEM # 7 19 20 13 11 17 01 08 16 14 15 18 07 05 04 09 10 03 12 06 02 00 O ║ Do a sequence of reactions to produce “2 – bromo – 2 – chloro – 1,1,1 – trifluoroethane” or commonly known as HALOTHANE a liquid anaesthetic widely used today.

  23. Dat’s all FOLKS…

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