Which of the following types of molecular representations can be used to show differences between isomers? explain why each can or cannot. a) molecular formula b) structural formula c) 3d drawing or model,

Isomer is defined as compounds with the same formula but different arrangement of atoms in its molecule and they differ in their properties. The representation that can be used to show differences between isomers is the use of structural formula.  It shows the arrangement of each atoms. It cant be molecular formula and 3D drawing because it does not show the arrangement of the atoms.