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Alkene Reactions

Alkene Reactions. Addition Reactions - only one product 1. Hydrogenation (H 2 ): Alkene + Hydrogen --> Alkane 2. Halogenation (X 2 ): Alkene + diatomic halogen --> Dihaloalkane 3. Halgenation (HX): Alkene + HX --> Haloalkane 4. Hydration (HOH): Alkene + HOH --> alcohol

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Alkene Reactions

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  1. Alkene Reactions • Addition Reactions - only one product • 1. Hydrogenation (H2): Alkene + Hydrogen --> Alkane • 2. Halogenation (X2):Alkene + diatomic halogen --> Dihaloalkane • 3. Halgenation (HX):Alkene + HX --> Haloalkane • 4. Hydration (HOH):Alkene + HOH --> alcohol • 5. Polymerization:Many alkenes add together into a long alkane chain

  2. Alkene Reactions

  3. 1. Hydrogenation Reaction • Alkene + Hydrogen --> Alkane • Hydrogen molecule adds to carbons with double bond.

  4. Alkene Reactions

  5. Alkene Reactions

  6. 2. Halogenation Reaction • Alkene + Halogen --> Dihaloalkane • Halogen molecule adds to carbons with double bond.

  7. Alkene Reactions

  8. Unsymmetrical Addition Reactions • Markovnikov’s Rule • For double bonds that have unequal numbers of hydrogen atoms attached. • For unsymmetrical reactants such as HX and HOH • The hydrogen of the reactant goes to the carbon of the double bond that already has the most hydrogen atoms. “the rich get richer” • The -X or the -OH go the other carbon (the one with the least amount of hydrogen

  9. 3. Halogenation Reaction • Alkene + HX --> haloalkane • HCl molecule adds to carbons with double bond.

  10. Alkene Reactions

  11. 4. Hydration Reaction • Alkene + HOH --> alcohol • HOH molecule adds to carbons with double bond.

  12. Alkene Reactions

  13. 5. Polymerization Reaction • Alkene + Alkene + Alkene --> long chain of carbons • Double bonds convert to single bonds

  14. What is the structure for Alkene Reactions

  15. Alkene Reactions

  16. Alkene Reactions

  17. Alkene Reactions

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