John Cleese to Star in a British Sitcom for First Time in Nearly 40 Years. 11 April 2017 3:34 AM, -08:00 | Variety - TV News. The new Will & Grace TV series will extend to 12 episodes. 5 April 2017 9:30 PM, -08:00 | The Hollywood News.
Analytical chemists determine the structure, composition, and nature of substances by examining and identifying their various elements or compounds. They also study the relationships and interactions among the parts of compounds.
1 Theoretical and physical chemists study things such as molecules, atoms and chemical reactions to develop different energy sources. 2  Medicinal chemists research chemicals and compounds used to create medications for people. 3  Organic chemists investigate the makeup of different carbon compounds.