Copper and Sulfate Compounds

The video tutorial explains how to write the formula for copper(II) sulfate. It begins by identifying copper on the periodic table and recognizing sulfate as a polyatomic ion. The tutorial then discusses the formation of ionic compounds, focusing on the charges of copper and sulfate. It explains how to balance these charges to achieve a net charge of zero, resulting in the formula CuSO4 for copper(II) sulfate.

What is the symbol for copper on the periodic table?

• C

• Co

• Cu

• Ca

Which of the following is a polyatomic ion?

• H2O

• O2

• NaCl

• SO4 2-

What type of compound is formed by copper and sulfate?

• Covalent

• Ionic

• Metallic

• Molecular

What is the charge on the sulfate ion?

• 1-

• 2+

• 2-

• 1+

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

• The number of sulfate ions

• The number of copper atoms

• The charge of the sulfate ion

• The charge of the copper ion

What is the net charge of the compound copper(II) sulfate?

• 2-

• 2+

• 1-

• 0