Naming and Charges of Compounds

The video tutorial explains how to name the compound HgO, known as mercury(II) oxide. It begins by identifying mercury as a transition metal and oxygen as a non-metal, indicating the need to treat HgO as an ionic compound. The tutorial covers the use of Roman numerals to denote the charge of transition metals, specifically mercury in this case. It explains the process of balancing charges between mercury and oxygen to ensure the compound is correctly named. The video concludes with the finalized name, mercury(II) oxide, and a brief explanation of how to write the chemical formula from the name.

What type of compound is HgO considered to be?

• Covalent compound

• Organic compound

• Metallic compound

• Ionic compound

Why do we use Roman numerals when naming compounds with transition metals?

• To show the charge of the metal

• To denote the compound's state

• To indicate the number of atoms

• To specify the compound's color

What is the charge of oxygen in HgO?

• 2-

• 1-

• 2+

• 1+

What Roman numeral is used in the name of HgO?

• IV

• III

• II

• I

If given the name Mercury(II) Oxide, what is the formula?

• Hg2O

• HgO2

• HgO

• Hg2O3

What is the charge of mercury in Mercury(II) Oxide?

• 1+

• 2+

• 0

• 3+

How do the charges of mercury and oxygen balance in HgO?

• Mercury 3+ and Oxygen 3-

• Mercury 0 and Oxygen 0

• Mercury 2+ and Oxygen 2-

• Mercury 1+ and Oxygen 1-