Nickel(II) Sulfate and Polyatomic Ions

The video tutorial explains how to name the compound NiSO4. It begins by identifying the sulfate ion (SO4) and its bond with nickel, a transition metal. The tutorial outlines the steps to name the compound: first, by naming the metal (nickel), then the polyatomic ion (sulfate). Since nickel is a transition metal, its charge is determined by the sulfate ion's charge, resulting in nickel having a 2+ charge. This is indicated in the name as 'nickel(II) sulfate'. The video concludes by explaining how the name reflects the formula NiSO4.

What is the polyatomic ion present in NiSO4?

• Nitrate

• Sulfate

• Carbonate

• Phosphate

Which type of metal is nickel classified as?

• Alkali metal

• Alkaline earth metal

• Transition metal

• Noble gas

What is the first step in naming an ionic compound like NiSO4?

• Identify the charge of the metal

• Determine the polyatomic ion

• Calculate the net charge

• Write the name of the metal

What is the name of the polyatomic ion SO4?

• Sulfite

• Sulfate

• Sulfur

• Sulfide

Why is it important to know the charge of nickel in NiSO4?

• To calculate the molecular weight

• To determine the color of the compound

• To balance the charges for a net charge of zero

• To identify the state of matter

What is the charge of the sulfate ion in NiSO4?

• 4-

• 2-

• 1-

• 3-

What does the Roman numeral in nickel(II) sulfate indicate?

• The number of electrons in nickel

• The number of sulfate ions

• The atomic number of nickel

• The charge of the nickel ion

What is the correct formula for nickel(II) sulfate?

• Ni(SO4)2

• NiSO3

• NiSO4

• Ni2SO4