1-Draw the product of the complete hydrogenation of ethyne.

2-Draw the product of the hydration of 2-butene.

3-Draw the molecule resulting from the addition of HBr topropene.

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For alkenes and alkynes, the most characteristic reaction is the addition of atoms or groups of atoms to the carbon atoms of the double or triple bond. The additions occur because double bonds or triple bonds are easily broken, which provides electrons for new single bonds. There are several types of addition reactions, defined by the type of reactant added: Reactant added Name of addition reaction H₂ Cl2, Br2 HCl, HBr, HI Hydrohalogenation H₂O Hydration Hydrogenation Halogenation For alkenes and alkynes, the most characteristic reaction is the addition of atoms or groups of atoms to the carbon atoms of the double or triple bond. The additions occur because double bonds or triple bonds are easily broken, which provides electrons for new single bonds. There are several types of addition reactions, defined by the type of reactant added: Reactant added Name of addition reaction H₂ Cl2, Br2 HCl, HBr, HI Hydrohalogenation H₂O Hydration Hydrogenation Halogenation