Iron(III) Nitrate and Ionic Compounds

The video tutorial explains how to write the Lewis structure for iron(III) nitrate (FeNO3). It begins by identifying the components of FeNO3, highlighting that iron is a metal and nitrogen and oxygen are non-metals forming a polyatomic ion. The tutorial describes the formation of an ionic compound through electron transfer from iron to the non-metals, resulting in iron having a +3 charge. The video then illustrates the Lewis structure for the nitrate ion (NO3-) and explains how these ions are arranged around the iron atom. Finally, it discusses the crystalline structure formed by repeating formula units of FeNO3.

What type of compound is Iron(III) Nitrate?

• Covalent

• Ionic

• Molecular

• Metallic

What elements make up the polyatomic ion in Iron(III) Nitrate?

• Iron and Oxygen

• Iron, Nitrogen, and Oxygen

• Nitrogen and Oxygen

• Iron and Nitrogen

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

• +1

• +2

• +3

• +4

How many electrons does iron lose in Iron(III) Nitrate?

• Three

• Four

• Two

• One

Why is Iron(III) Nitrate considered an ionic compound?

• It contains only non-metals

• It forms covalent bonds

• It contains only metals

• It involves electron transfer from metal to non-metals

What does the 'III' in Iron(III) Nitrate signify?

• The number of oxygen atoms

• The oxidation state of iron

• The number of nitrogen atoms

• The number of nitrate ions

What is the role of brackets in the Lewis structure of nitrate ions?

• To represent the polyatomic nature

• To highlight the central atom

• To show the number of atoms

• To indicate the charge

What does the drawn Lewis structure of Iron(III) Nitrate represent?

• A single molecule

• A formula unit of a crystal

• An isolated atom

• A covalent bond