Summary:
- An addition reaction is a reaction in which an atom or molecule is added to an unsaturated molecule, making a single product.
- Addition reactions are useful ways to introduce a new functional group into an organic molecule.
- Hydration reactions can take place when the alkene and water are heated to near 100°C in the presence of a strong acid, which acts as a catalyst.
- A monosubstituted alkyl halide can be produced by the addition of a hydrogen halide to an alkene.