Answer:
Look at the explanation
Step-by-step explanation:
When depicting a molecule using a structural formula, the lines typically represent the covalent bonds between atoms. Covalent bonds involve the sharing of electrons between atoms to achieve a stable electron configuration. The lines in the structural formula indicate the pairs of electrons being shared between atoms to form these bonds.
A single line (-) represents a single covalent bond, where two electrons are shared between the bonded atoms. For example, in the molecule H2O (water), the structural formula would be:
H-O-H
Here, the single line between the hydrogen (H) and oxygen (O) atoms represents a single covalent bond formed by the sharing of two electrons.