Balancing Charges in Ionic Compounds

The video tutorial explains how to write the formula for Copper(II) Bicarbonate. It begins by discussing the charge of copper, indicated by the Roman numeral II, and the nature of the bicarbonate ion, which is not found on the periodic table. The tutorial details the process of balancing charges to form an ionic compound, resulting in the formula Cu(HCO3)2. The video concludes with a brief mention of alternative names for the compound.

What does the Roman numeral in Copper(II) indicate?

• The mass of Copper

• The number of Copper atoms

• The charge of the Copper ion

• The atomic number of Copper

What is the charge of the Bicarbonate ion?

• 2+

• 1+

• 2-

• 1-

What is another name for the Bicarbonate ion?

• Sulfate ion

• Hydroxide ion

• Hydrogen Carbonate ion

• Carbonate ion

Why is it important to balance the charges in an ionic compound?

• To ensure the compound is stable

• To make the compound colorful

• To decrease the compound's reactivity

• To increase the compound's mass

How many Bicarbonate ions are needed to balance the charge of one Copper(II) ion?

• Four

• One

• Two

• Three

What is the correct formula for Copper(II) Bicarbonate?

• CuHCO3

• Cu2(HCO3)3

• Cu(HCO3)2

• Cu2HCO3

What is the significance of using parentheses in the formula Cu(HCO3)2?

• To separate different elements

• To indicate the presence of a polyatomic ion

• To show the number of Copper atoms

• To highlight the charge of Copper