Net Ionic Equations and Spectator Ions

The video tutorial explains how to write and balance net ionic equations, using barium nitrate and sodium chromate as examples. It begins with balancing the molecular equation, then discusses the solubility and states of the compounds involved. The tutorial proceeds to form the complete ionic equation, identifying spectator ions, and finally deriving the net ionic equation. The video concludes by emphasizing the importance of charge conservation and atom balance in the equations.

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

• Write the complete ionic equation

• Determine the solubility of compounds

• Balance the molecular equation

• Identify spectator ions

Which of the following is generally very soluble in water?

• Chromates

• Barium nitrate

• Barium chromate

• Sodium compounds

Why is barium chromate considered a solid in the net ionic equation?

• It is a gas

• It is highly soluble

• It is a liquid

• It is slightly soluble and forms a precipitate

What is the charge of the barium ion in the complete ionic equation?

• 2-

• 2+

• 1-

• 1+

In the complete ionic equation, which ion is not split into its components?

• Sodium ion

• Nitrate ion

• Chromate ion

• Barium chromate

What is the role of spectator ions in a net ionic equation?

• They balance the charge

• They are eliminated from the equation

• They form the precipitate

• They participate in the reaction

Which ions are considered spectator ions in this reaction?

• Barium and chromate ions

• Sodium and nitrate ions

• Chromate and nitrate ions

• Barium and sodium ions

What is the net charge of the final compound in the net ionic equation?

• 2+

• 1+

• 0

• 2-

What ensures that the net ionic equation is balanced?

• Equal number of ions on both sides

• Equal number of molecules on both sides

• Equal number of compounds on both sides

• Equal number of atoms on both sides

What is the significance of charge conservation in the net ionic equation?

• It identifies spectator ions

• It ensures the equation is balanced

• It determines the solubility

• It predicts the reaction products