Oxidation States and Naming Compounds

The video tutorial explains how to name the compound MnO2 by treating it as an ionic compound. It starts by identifying manganese as the metal and oxygen as the nonmetal, replacing the ending with 'ide' to form manganese oxide. Since manganese is a transition metal, its oxidation state is determined by the charge of oxygen, which is 2-. The total charge must equal zero, leading to manganese having a 4+ charge. Thus, the compound is named manganese(IV) oxide, with the Roman numeral indicating the oxidation state of manganese.

What type of compound is MnO2 classified as?

• Molecular compound

• Metallic compound

• Ionic compound

• Covalent compound

When naming MnO2, what suffix is used for the nonmetal component?

• ate

• ous

• ide

• ite

Why is it important to consider the oxidation state of manganese in MnO2?

• Because manganese is always in a fixed state

• Because manganese is a nonmetal

• Because manganese can have multiple oxidation states

• Because manganese is a noble gas

What is the ionic charge of oxygen in MnO2?

• 1-

• 2+

• 1+

• 2-

How many oxygen atoms are present in MnO2?

• Three

• Two

• One

• Four

What is the oxidation state of manganese in MnO2?

• 3+

• 2+

• 4+

• 5+

How is the oxidation state of manganese indicated in the name of MnO2?

• Using Roman numerals

• Using a suffix

• Using a prefix

• Using Greek letters

What is the full name of MnO2?

• Manganese trioxide

• Manganese(IV) oxide

• Manganese(II) oxide

• Manganese dioxide