Chemical Bonding Worksheet With Answers (Page 6 of 6) in pdf

Chemical Bonding Worksheet With Answers Page 6

22.

Distinguish between shared and unshared electron pairs.

A shared pair of electrons, they are two electrons in a covalent bond

that alternate between atoms; one electron from one atom and one

electron from the other atom. Unshared pairs are two electrons that

are not involved in a bond and have already filled their shells. In a dot

diagram there would be two electrons paired together on one side of

an atom, but not shown to be part of the bond.

23.

Which of the following statements explains why ionic compounds generally

conduct an electrical current?

A. The shared electrons of the molecular bonds become free to move when the

compound is dissolved in water.

**B.

When ionic compounds dissolve in water, their ions dissociate and

become free to move through the solution and conduct electricity.

C. When an ionic compound dissolves in water, the compound remains intact but

takes on a negative charge that allows it to flow through the solution and

conduct electricity.

D. Dipole moments form hydrogen bonds in solution and allow electrical current

to flow.

Chemical Bonding Worksheet With Answers Page 6