Lead Compounds and Carbonate Ions

The video tutorial explains how to name the compound PbCO3. It begins by identifying CO3 as the carbonate ion and Pb as lead, a transition metal. The tutorial highlights the importance of recognizing the ionic charges, noting that carbonate has a 2- charge. Since there are two carbonate ions, the total negative charge is 4-. To balance this, lead must have a 4+ charge. The name of the compound is finalized as lead(IV) carbonate, with the Roman numeral indicating the charge of lead. The tutorial emphasizes understanding the charges and balancing them to achieve a net charge of zero.

What is the polyatomic ion present in PbCO3(2)?

• Carbonate

• Nitrate

• Sulfate

• Phosphate

Why is lead considered a transition metal?

• It is always positively charged.

• It is a non-metal.

• It can form multiple ionic charges.

• It has a fixed ionic charge.

What is the charge of the carbonate ion?

• 1-

• 2-

• 4-

• 3-

How many carbonate ions are present in PbCO3(2)?

• Three

• Two

• One

• Four

What is the total negative charge contributed by the carbonate ions in PbCO3(2)?

• 4-

• 2-

• 3-

• 6-

What Roman numeral is used to indicate the charge of lead in PbCO3(2)?

• IV

• V

• III

• II

What is the correct name for the compound PbCO3(2)?

• Lead(V) Carbonate

• Lead(II) Carbonate

• Lead(III) Carbonate

• Lead(IV) Carbonate