Copper(I) Carbonate and Ionic Compounds

The video tutorial explains how to write the formula for copper(I) carbonate. It begins by identifying copper and carbonate ions, noting that carbonate is a polyatomic ion. The tutorial then discusses the nature of ionic compounds and the importance of charge balance. Using the crisscross method, the video demonstrates how to derive the formula Cu2CO3. Finally, it verifies the formula by checking the charge balance, ensuring the compound is neutral.

What is the symbol for copper on the periodic table?

• Ca

• Cr

• Co

• Cu

Which of the following indicates a polyatomic ion?

• -ine

• -ide

• -ate

• -ous

What charge does the carbonate ion (CO3) carry?

• 1+

• 2+

• 2-

• 1-

Why must the charges in an ionic compound add up to zero?

• To make it conductive

• To make it stable

• To make it reactive

• To make it neutral

What does the 'one' in Copper(I) indicate?

• The charge of copper

• The number of copper atoms

• The number of carbonate ions

• The atomic number of copper

What is the crisscross method used for?

• Balancing chemical equations

• Determining molecular geometry

• Writing formulas for ionic compounds

• Identifying elements

In the crisscross method, what happens to the charges?

• They are added together

• They are ignored

• They are subtracted

• They are swapped and used as subscripts

What is the correct formula for Copper(I) Carbonate?

• Cu(CO3)2

• Cu2(CO3)3

• Cu2CO3

• CuCO3

How many copper ions are needed to balance one carbonate ion in Copper(I) Carbonate?

• One

• Three

• Four

• Two

What is the net charge of Copper(I) Carbonate?

• 1+

• 2+

• 0

• 1-