Ionic Compounds and Their Charges

This video tutorial covers the basics of writing and naming ionic compounds, focusing on transition metals and polyatomic ions. It explains how to determine the charge of ions, write formulas for simple and complex ionic compounds, and understand the role of Roman numerals in indicating the charge of transition metals. The tutorial includes examples of sodium chloride, calcium chloride, aluminum chloride, iron chloride, tin chloride, and lead oxide, demonstrating how to balance charges to form neutral compounds. It also teaches how to deduce the name of a compound from its formula.

What charge does sodium typically have when it forms an ionic compound?

• -1

• +2

• +1

• -2

How many chloride ions are needed to balance the charge of one calcium ion in calcium chloride?

• Three

• Two

• One

• Four

What is the formula for aluminum chloride?

• AlCl2

• Al2Cl3

• AlCl

• AlCl3

What does the Roman numeral in iron(II) chloride indicate?

• The number of iron atoms

• The total charge of the compound

• The charge of the iron ion

• The number of chloride ions

How many chloride ions are needed to balance the charge of one iron ion in iron(III) chloride?

• Four

• Two

• Three

• One

What is the formula for tin(IV) chloride?

• SnCl

• SnCl4

• SnCl2

• SnCl3

If a lead ion has a charge of +2, what is the name of the compound PbO?

• Lead(II) oxide

• Lead(IV) oxide

• Lead(IV) chloride

• Lead(II) chloride

What is the charge on copper in the compound CuCl?

• +1

• +2

• -1

• -2

How many chloride ions are needed to balance the charge of one tin ion in SnCl2?

• Four

• Two

• Three

• One

What is the name of the compound with the formula PbO2?

• Lead(II) chloride

• Lead(IV) oxide

• Lead(IV) chloride

• Lead(II) oxide