Iron Compounds and Their Properties

The video tutorial explains how to write the chemical formula for Iron(III) Nitride. It begins by identifying the elements involved, iron and nitrogen, and their respective symbols from the periodic table. The tutorial then discusses the nature of ionic compounds formed between metals and nonmetals, emphasizing the importance of balancing charges. Iron, being a transition metal, has a charge of 3+, while nitrogen has a charge of 3-. The video demonstrates how these charges balance to form a neutral compound, resulting in the formula FeN. The tutorial concludes with a clean presentation of the formula, ensuring clarity and understanding.

What is the chemical symbol for iron as found on the periodic table?

• Fe

• In

• I

• Ir

What type of compound is formed when a metal and a nonmetal combine?

• Covalent

• Ionic

• Metallic

• Molecular

What is the charge on the iron ion in iron(III) nitride?

• 3+

• 2+

• 1+

• 4+

What is the charge on the nitride ion?

• 4-

• 1-

• 2-

• 3-

What is the final formula for iron(III) nitride?

• Fe2N3

• Fe3N2

• FeN

• FeN3