Naming and Charges of Iron Compounds

The video tutorial explains how to name the compound FeSO4. It begins by identifying the components: Fe, a transition metal, and SO4, a polyatomic ion known as sulfate. The tutorial outlines the naming process, starting with the metal, iron, followed by the polyatomic ion, sulfate. It emphasizes the importance of charge balancing, noting that the sulfate ion has a 2- charge, requiring iron to have a 2+ charge to balance the compound. The tutorial concludes by explaining how to indicate the iron's charge using Roman numerals, resulting in the name iron(II) sulfate.

What is the polyatomic ion present in FeSO4?

• Phosphate

• Carbonate

• Sulfate

• Nitrate

What type of metal is iron in the context of FeSO4?

• Noble metal

• Transition metal

• Alkaline earth metal

• Alkali metal

When naming FeSO4, which part of the compound is named first?

• The nonmetal

• The metal

• The polyatomic ion

• The anion

What is the ionic charge of the sulfate ion in FeSO4?

• 1-

• 2-

• 4-

• 3-

Why is it important to know the charge of the sulfate ion when naming FeSO4?

• To calculate the molar mass

• To decide the physical state of the compound

• To balance the charges in the compound

• To determine the color of the compound

How is the charge of the iron ion indicated in the name of FeSO4?

• By using a subscript

• By using a Roman numeral

• By using a suffix

• By using a prefix

What Roman numeral is used in the name of FeSO4 to indicate the charge of iron?

• I

• II

• IV

• III

If given the name 'iron(II) sulfate', what information does this provide about the iron ion?

• It has a 4+ charge

• It has a 2+ charge

• It has a 1+ charge

• It has a 3+ charge

What is the correct formula for iron(II) sulfate?

• FeSO4

• FeSO3

• Fe2(SO4)3

• Fe2SO4