This question is about alcohols, carboxylic acids and esters. Polyesters can be manufactured from carboxylic acids and alcohols. Hexanedioic acid has the structure: $$\(\mathrm{HOOC}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{COOH}\)$$. This structure can be simplified as shown. Ethanediol has the structure: $$\(\mathrm{HO}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\)$$. This structure can be simplified as shown. The functional groups are found at the end of each molecule. State what is meant by the term functional group. ...................................................................................................................................

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