Net Ionic Equations and Spectator Ions

This video tutorial explains how to write the net ionic equation for the reaction between barium chloride (BaCl2) and copper(II) sulfate (CuSO4). It begins with writing the balanced molecular equation and determining the solubility and states of the compounds involved. The tutorial then demonstrates how to split strong electrolytes into their ions to form the complete ionic equation. Finally, it shows how to derive the net ionic equation by removing spectator ions, resulting in the formation of barium sulfate as a solid precipitate.

What is the first step in writing a net ionic equation?

• Identify spectator ions

• Write the balanced molecular equation

• Split the compounds into ions

• Determine the solubility of the compounds

Which of the following is true about chloride ions in the reaction?

• They form a solid precipitate

• They are insoluble

• They are very soluble

• They do not participate in the reaction

What is the state of barium sulfate in the reaction?

• Solid

• Gas

• Aqueous

• Liquid

What charge does the barium ion have in this reaction?

• 2-

• 1+

• 2+

• 1-

Which ion is not broken apart in the net ionic equation?

• Sulfate ion

• Chloride ion

• Barium sulfate

• Copper(II) ion

What is the purpose of identifying spectator ions?

• To balance the equation

• To determine solubility

• To simplify the net ionic equation

• To find the charges of ions

Which ions are crossed out as spectator ions in this reaction?

• Barium and chloride ions

• Copper(II) and chloride ions

• Barium and sulfate ions

• Copper(II) and sulfate ions

What is the final product formed in the net ionic equation?

• Copper(II) chloride

• Barium chloride

• Copper(II) sulfate

• Barium sulfate

What is the net ionic equation for the reaction?

• Ba2+ + Cu2+ → BaCu

• Cu2+ + 2Cl- → CuCl2

• Ba2+ + SO4 2- → BaSO4

• BaCl2 + CuSO4 → BaSO4 + CuCl2

What is the role of Dr. B in the video?

• To discuss the periodic table

• To introduce new chemical elements

• To explain the net ionic equation

• To demonstrate a chemical experiment