Net Ionic Equations and Spectator Ions

This video tutorial explains how to write a balanced net ionic equation for the reaction between lead(II) acetate and potassium bromide. It covers balancing the molecular equation, determining the solubility of compounds, splitting strong electrolytes into ions, and identifying spectator ions to derive the net ionic equation. The tutorial emphasizes the importance of charge conservation and atom balance in the final equation.

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

• Determine the solubility of compounds

• Balance the molecular equation

• Write the complete ionic equation

• Identify spectator ions

Why do we write 'aq' for acetates in the reaction?

• They are gases

• They are very soluble

• They are slightly soluble

• They are insoluble

What is the state of lead(II) bromide in the reaction?

• Aqueous

• Solid

• Gas

• Liquid

What is the role of a solubility table in this process?

• To balance the equation

• To check the solubility of compounds

• To identify spectator ions

• To determine the charge of ions

What charge does the lead ion have in lead(II) acetate?

• 1+

• 2+

• 4+

• 3+

Which ions are considered spectator ions in this reaction?

• Lead and bromide ions

• Only potassium ions

• Only acetate ions

• Potassium and acetate ions

What happens to the spectator ions in the net ionic equation?

• They are included in the final equation

• They are removed from the equation

• They form a precipitate

• They change their charge

What is the net ionic equation for the reaction?

• Pb^2+ + 2C2H3O2^- → Pb(C2H3O2)2

• 2K^+ + 2C2H3O2^- → 2KC2H3O2

• 2K^+ + 2Br^- → 2KBr

• Pb^2+ + 2Br^- → PbBr2

What is conserved in a balanced net ionic equation?

• Both mass and charge

• Only mass

• Only charge

• Neither mass nor charge

Why is it important to ensure the net charge is zero on both sides of the equation?

• To confirm the reaction is balanced

• To determine solubility

• To write the molecular equation

• To identify spectator ions