Naming Ionic Compounds and Polyatomic Ions

This video tutorial by Craig Beals covers the topic of ionic compounds, focusing on naming and formula units. It begins with an explanation of oxidation states and how to find them using the periodic table. The tutorial then moves on to naming ionic compounds, including those with polyatomic ions and oxyanions. The video provides rules and examples for naming, emphasizing the importance of understanding oxidation states and charges. Practice problems are included to reinforce learning.

What is the oxidation state of calcium when it forms an ion?

• -1

• -2

• +2

• +1

How many electrons does oxygen gain when it forms an ion?

• 1

• 2

• 3

• 4

What is the formula for magnesium oxide?

• MgO2

• Mg2O3

• MgO

• Mg2O

When naming ionic compounds, which ion is named first?

• Anion

• Cation

• Polyatomic ion

• Oxyanion

What Roman numeral is used to indicate iron with a 3+ charge?

• III

• II

• I

• IV

Which of the following is a polyatomic ion?

• PO4^3-

• Na+

• O2-

• Cl-

What is the name of the ion with the formula NO3^-?

• Nitrogen oxide

• Nitride

• Nitrate

• Nitrite

What is the correct name for the compound with the formula Fe2O3?

• Iron(IV) oxide

• Iron(III) oxide

• Iron(II) oxide

• Iron oxide

What is the formula for sodium hydroxide?

• NaOH

• NaH

• NaHO

• NaO

Which of the following compounds is named correctly?

• MgS - Magnesium(II) sulfide

• Al2O3 - Aluminum oxide

• FeO - Iron(III) oxide

• CuCl - Copper(II) chloride