Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between lead 2 acetate and potassium sulfate. It begins by introducing the compounds and balancing the molecular equation. The tutorial then assigns states to each compound, identifying lead sulfate as a precipitate. The complete ionic equation is written by splitting strong electrolytes into ions, except for the solid lead sulfate. Spectator ions are identified and removed to derive the net ionic equation. The tutorial concludes with a summary of the balanced net ionic equation, ensuring charges and atoms are balanced.

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

• Write the complete ionic equation

• Identify the spectator ions

• Balance the molecular equation

• Determine the solubility of compounds

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

• Add a coefficient of 2 in front of potassium acetate

• Add a coefficient of 2 in front of lead(II) sulfate

• Add a coefficient of 2 in front of potassium sulfate

• Add a coefficient of 2 in front of lead(II) acetate

Which compound is an exception to the general solubility of sulfate ions?

• Potassium acetate

• Acetate ion

• Lead(II) sulfate

• Potassium sulfate

What happens to the precipitate formed in the reaction?

• It dissolves in water

• It remains as ions in solution

• It falls to the bottom of the test tube

• It reacts with other ions

What is the purpose of writing the complete ionic equation?

• To determine the solubility of compounds

• To balance the charges

• To split strong electrolytes into ions

• To identify the precipitate

Which ions are not split in the complete ionic equation?

• Ions forming a solid precipitate

• Ions in aqueous solution

• Spectator ions

• All ions are split

What are spectator ions?

• Ions that do not participate in the reaction

• Ions that form a precipitate

• Ions that balance the charges

• Ions that are insoluble

How do you finalize the net ionic equation?

• By dissolving the precipitate

• By adding more reactants

• By balancing the molecular equation

• By removing spectator ions

What is the net charge of the balanced net ionic equation?

• Negative

• Positive

• Depends on the reactants

• Zero

What ensures the net ionic equation is balanced?

• Equal number of atoms on both sides

• Equal number of molecules on both sides

• Equal number of ions on both sides

• Equal number of compounds on both sides