Select all synthesis reactions (There are 2) * Fe+2HClrarrFeCl_(2)+H_(2) 2H_(2)O-2H_(2)+O_(2) 2Al+3F_(2)rarr2AlF_(3) 2K+Br_(2)rarr2KBr CH_(4)+2O_(2)rarrCO_(2)+2H_(2)O?