Question

test: covalent compounds
the line in a lewis dot structure of a molecule represents:
one electron given away
two shared electrons
two electrons given away
one shared electron

Explanation:

In Lewis dot structures, a line (bond line) represents a covalent bond. A covalent bond is formed by the sharing of electrons. Each covalent bond (line) involves two electrons (one from each atom participating in the bond).

Answer:

two shared electrons