It is a planar molecule with 120 degree bond angles. C 2 H 6 is ethane. The ethane bond angles are 109 degrees. Each carbon has two hydrogen atoms attached. It is a planar molecule and the bond angles are approximately 120 degrees.
Ammonia is a trigonal pyramidal molecule.
Three of the hydrogens of methane have been replaced by bromine atoms. C 60 is the newly discovered allotropic form of carbon. It is the famous buckminsterfullerene, a carbon molecule in the shape of a soccer ball. The molecule is hollow, but in spacefill mode you can't tell it. There is a cutaway version of this molecule which allows you to see the the inside of the molecule.