Nickel Compounds and Phosphate Ions

The video tutorial explains how to name the compound Ni3(PO4)2. It starts by identifying nickel as a transition metal and PO4 as a polyatomic ion, phosphate. The tutorial emphasizes the importance of balancing charges, especially since nickel is a transition metal. By calculating the charges, it is determined that nickel has a 2+ charge, leading to the name Nickel (II) Phosphate. The video provides a step-by-step guide to understanding the naming process for ionic compounds involving transition metals.

What type of metal is nickel in the compound Ni3(PO4)2?

• Transition metal

• Alkaline earth metal

• Noble gas

• Alkali metal

What is the nature of PO4 in the compound Ni3(PO4)2?

• A single element

• A polyatomic ion

• A diatomic molecule

• A covalent bond

Why is it important to consider charge when naming ionic compounds with transition metals?

• To balance the charges for a net charge of zero

• To ensure the compound is stable

• To determine the color of the compound

• To identify the physical state of the compound

What is the charge of the phosphate ion (PO4) in Ni3(PO4)2?

• 1-

• 2-

• 3-

• 4-

How many phosphate ions are present in the compound Ni3(PO4)2?

• Three

• Two

• Four

• One

What is the total negative charge contributed by the phosphate ions in Ni3(PO4)2?

• 9-

• 6-

• 3-

• 12-

What Roman numeral is used in the name of Ni3(PO4)2 to indicate the charge of nickel?

• II

• IV

• III

• I

What does the Roman numeral in Nickel(II) Phosphate signify?

• The total charge of the compound

• The number of phosphate ions

• The charge of the nickel ion

• The number of nickel atoms

If given the name Nickel(II) Phosphate, how would you determine the formula?

• By measuring the compound's mass

• By using the color of the compound

• By counting the number of atoms

• By knowing nickel is 2+ and balancing with phosphate