Answer:
Explanation:
A two-dimensional model represents the molecular formula of any molecule while a three-dimensional models represents of how any atom in a particular molecule is arranged in space to have a representation in mind.
A two-dimensional model is chosen because of its easiness, convenience and easy to remember. However, a three-dimensional model can be difficult to write but can be used to educate ourselves about the arrangement of atoms in the particular molecule and the bond angles between atoms with other different perspectives.
