Ferric Hydroxide and Oxidation States

The video tutorial explains how to name ferric hydroxide using the common naming system, focusing on the use of oxidation numbers to determine the correct formula. It introduces the crisscross method to balance charges and derive the chemical formula Fe(OH)3. The video concludes by mentioning the modern naming convention, iron(III) hydroxide, and highlights the importance of understanding oxidation states in chemical nomenclature.

What does the 'ic' suffix in ferric hydroxide indicate?

• The compound is acidic

• The compound is basic

• The higher oxidation state of iron is used

• The lower oxidation state of iron is used

Which oxidation states can iron have?

• +2 and +3

• +1 and +2

• +1 and +3

• +3 and +4

Why is the oxidation state +3 chosen for ferric hydroxide?

• Because it is less reactive

• Because it is more common

• Because 'ic' indicates the higher oxidation state

• Because it is more stable

What is the charge of a hydroxide ion?

• -2

• -1

• 0

• +1

What must be done if the charges in a compound do not balance?

• Remove some ions

• Change the element

• Change the subscripts

• Add more ions

What method is used to balance the charges in ferric hydroxide?

• Addition method

• Cross-multiplication method

• Crisscross method

• Substitution method

What is the chemical formula for ferric hydroxide?

• Fe(OH)3

• Fe(OH)2

• FeO3H

• FeOH

What is another name for ferric hydroxide?

• Iron IV hydroxide

• Iron I hydroxide

• Iron III hydroxide

• Iron II hydroxide