CREATE TABLE table_52660 ("Chemical class" TEXT, "Group" TEXT, "Formula" TEXT, "Prefix" TEXT, "Suffix" TEXT, "Example" TEXT)

What prefix has Haloalkane as the chemical class?
SELECT "Prefix" FROM table_52660 WHERE "Chemical class" = 'haloalkane'
SELECT "Prefix" FROM "table_52660" WHERE "Chemical class" = 'haloalkane'