Copper Compounds and Phosphate Ions

The video tutorial explains how to name the compound Cu3PO4. It begins by identifying PO4 as a polyatomic ion called phosphate. The tutorial then outlines the rules for naming ionic compounds, starting with the metal, copper, followed by the polyatomic ion, phosphate. Since copper is a transition metal, its charge must be determined. The tutorial explains that the phosphate ion has a charge of three minus, requiring each copper atom to have a one plus charge to balance the compound. The final name, Copper(I) Phosphate, is derived by indicating the charge of copper with a Roman numeral.

What is the polyatomic ion present in Cu3PO4?

• Carbonate

• Nitrate

• Phosphate

• Sulfate

What type of compound is Cu3PO4?

• Covalent

• Ionic

• Metallic

• Molecular

Which element is the metal in Cu3PO4?

• Iron

• Phosphorus

• Oxygen

• Copper

Why is it important to determine the charge of copper in Cu3PO4?

• To identify the number of oxygen atoms

• To balance the overall charge of the compound

• To determine the color of the compound

• To find the melting point

What is the charge of the phosphate ion in Cu3PO4?

• 3-

• 2-

• 1-

• 4-

How many copper atoms are present in Cu3PO4?

• One

• Two

• Three

• Four

What Roman numeral is used to indicate the charge of copper in Cu3PO4?

• IV

• III

• II

• I

What is the full name of the compound Cu3PO4?

• Copper(II) Phosphate

• Copper(III) Phosphate

• Copper(I) Phosphate

• Copper Phosphate