There are several different models that represent
compounds. One type of model is shown.
What type of model is shown?
O
O
O
o
a structural formula
a chemical formula
a space-filling model
a ball-and-stick model
HHH
H-C-C-C-H
HHH

a structural formula

Explanation:

A structural formula simply shows the arrangement of atoms on a compound or molecule.

They are mostly used in representing hydrocarbons.

Through a structural formula we can give name to a compound.

For example, the compound given is called Propane, an aliphatic hydrocarbon with 3-carbon atoms.

The bond relationship connecting the species are also shown in this designation.