Naming and Charges of Ionic Compounds

The video tutorial explains how to name the ionic compound Cu3N2. It begins by identifying copper as a metal and nitrogen as a non-metal, forming an ionic compound. The tutorial details the process of naming the metal and nonmetal, emphasizing the need to replace the ending of nitrogen with 'ide' to form 'nitride.' Since copper is a transition metal, its charge must be determined by examining its bond with nitrogen, which forms a 3- charge. The tutorial explains how to balance the charges, resulting in copper having a 2+ charge, leading to the name 'copper 2 nitride.'

What type of compound is Cu3N2?

• Molecular compound

• Covalent compound

• Ionic compound

• Metallic compound

Why is it important to note that copper is a transition metal when naming Cu3N2?

• Because it changes the compound's solubility

• Because it can have multiple oxidation states

• Because it determines the physical state of the compound

• Because it affects the color of the compound

What suffix is used when naming the non-metal part of an ionic compound?

• -ite

• -ide

• -ous

• -ate

How many nitrogen atoms are present in Cu3N2?

• One

• Two

• Three

• Four

What is the total negative charge contributed by the nitrogen atoms in Cu3N2?

• 12-

• 9-

• 6-

• 3-

What is the charge on each copper atom in Cu3N2?

• 1+

• 4+

• 2+

• 3+

How do you indicate the charge of a transition metal in a compound's name?

• Using a Roman numeral

• Using a suffix

• Using a subscript

• Using a prefix

What is the correct name for Cu3N2?

• Copper nitride

• Copper(III) nitride

• Copper(II) nitride

• Copper nitrate

If given the name 'copper(II) nitride', what is the charge on the copper?

• 3+

• 4+

• 2+

• 1+

What must be true for the charges in an ionic compound?

• The total positive charge must be greater than the total negative charge

• The total negative charge must be greater than the total positive charge

• The charges do not need to balance

• The total positive charge must equal the total negative charge