Question

multiple - choice question
how is a \single covalent bond\ shown with dashes?
with two dashes between symbols
with one dot between symbols
with a one dash between symbols

Explanation:

In chemical - bonding notation, a single covalent bond is represented by a single dash between the symbols of the two atoms involved. Two dashes represent a double covalent bond, and a dot is not used to represent a single covalent bond in this context.

Answer:

With a one dash between symbols