Lead Compounds and Phosphate Ions

The video tutorial explains how to name the compound Pb3(PO4)2. It starts by identifying lead (Pb) as a transition metal and PO4 as a polyatomic ion, specifically phosphate. The tutorial then details the process of naming the metal and the ion, followed by determining the charge of the transition metal to ensure the compound's net charge is zero. The final name, 'lead(II) phosphate,' includes a Roman numeral to indicate the charge of the lead ion. The video concludes with a brief explanation of how to write the formula from the name.

What type of metal is lead (Pb) considered in the context of naming compounds?

• Noble gas

• Halogen

• Transition metal

• Alkali metal

What is the name of the polyatomic ion represented by PO4?

• Phosphate

• Nitrate

• Carbonate

• Sulfate

Why is it necessary to determine the charge of lead in Pb3(PO4)2?

• To balance the chemical equation

• To ensure the net charge of the compound is zero

• To identify the color of the compound

• To determine the physical state of the compound

What is the charge of the phosphate ion (PO4) in Pb3(PO4)2?

• 4-

• 1-

• 3-

• 2-

How many phosphate ions are present in the compound Pb3(PO4)2?

• Two

• Four

• One

• Three

What Roman numeral is used in the name of Pb3(PO4)2 to indicate the charge of lead?

• II

• IV

• I

• III

What is the correct name for the compound Pb3(PO4)2?

• Lead(IV) phosphate

• Lead(II) phosphate

• Lead phosphate

• Lead(III) phosphate

In the formula Pb3(PO4)2, what is the ionic charge of each lead atom?

• 2+

• 4+

• 1+

• 3+