Chemistry Unit 4 Practice Quiz

Name the following compound: N2O4

Name the following compound: SCl6

How many electrons are available to bond in a molecule of OF2?

Which of the following is NOT a property of covalent compounds? 

• Generally soluble in water

• Can further be divided into categories like hydrocarbons

• Poor conductors of electricity in solution

• Low melting points

Write the chemical formula for the following compound:  Diboron heptafluoride

Write the chemical formula for the following compound: Triphosphorus pentachloride

Which of the following elements would be the best choice for the central atom of a Lewis structure?

• F

• S

• H

• Br

What does it mean for a molecule to demonstrate resonance?

• The ability of a molecule to form multiple bonds with different atoms.

• The phenomenon where electrons are shared equally between atoms in a molecule.

• The representation of a molecule by two or more valid Lewis structures that contribute to the actual structure.

• The process of electrons moving from one atom to another in a single, fixed position.

Which of the following elements can have an expanded octet of more than 8 valence electrons?

• H

• O

• N

• Se