Complex sentence: Hippolyte-Victor Collet-Descotils was a French chemist, born November 21,1773 in Caen, and died December 6,1815 in Paris.
Split into simpler sentences: Hippolyte-Victor Collet-Descotils was a French chemist. He was born November 21,1773 in Caen and died December 6,1815 in Paris.