Balancing Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between ammonium sulfate and barium hydroxide. It begins by balancing the molecular equation, then assigns states to each compound based on solubility rules. The tutorial proceeds to split strong electrolytes into ions for the complete ionic equation, identifying and removing spectator ions. Finally, it presents the net ionic equation, ensuring that charge and atom balance are maintained.

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

• Identify spectator ions

• Balance the molecular equation

• Determine the solubility of compounds

• Write the complete ionic equation

How do you balance the number of ammonium ions in the molecular equation?

• Add a coefficient of 2 in front of ammonium sulfate

• Add a coefficient of 2 in front of barium hydroxide

• Add a coefficient of 2 in front of ammonium hydroxide

• Add a coefficient of 2 in front of barium sulfate

Which of the following compounds is considered insoluble in this reaction?

• Barium sulfate

• Ammonium hydroxide

• Barium hydroxide

• Ammonium sulfate

What happens to barium sulfate in the reaction?

• It reacts with ammonium ions

• It remains as ions in solution

• It forms a precipitate

• It dissolves in water

What is the role of spectator ions in the complete ionic equation?

• They change the charge balance

• They are removed from the net ionic equation

• They participate in the reaction

• They form a precipitate

Which ions are considered spectator ions in this reaction?

• Barium ions

• Hydroxide ions

• Sulfate ions

• Ammonium ions

What is the net charge of the products in the net ionic equation?

• Variable

• Zero

• Negative

• Positive

Why is it important to ensure charge conservation in the net ionic equation?

• To ensure the reaction is feasible

• To identify spectator ions

• To balance the number of atoms

• To maintain electrical neutrality

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

• Identifying spectator ions

• Ensuring charge and atom balance

• Balancing the molecular equation

• Determining solubility

What is the net ionic equation for the reaction between ammonium sulfate and barium hydroxide?

• NH4+ + SO4^2- → (NH4)2SO4

• Ba2+ + OH- → Ba(OH)2

• NH4+ + OH- → NH3 + H2O

• Ba2+ + SO4^2- → BaSO4