<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?cfc-11 ni moja ya kemikali za jamii ya chloroflurocarbon cfc ambazo hutumika kwa ajili ya kutengeza joto ama baridi tokea miaka ya 1930.  <response>: cfc-11 - trichlorofluoromethane is one of a number of chlorofluorocarbons cfc chemicals that were initially developed as refrigerants during the 1930s. 