Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for a reaction involving lead(II) nitrate and ammonium carbonate. It covers balancing the molecular equation, determining the states of compounds, writing the complete ionic equation, and identifying spectator ions to derive the net ionic equation. The tutorial emphasizes the importance of charge and atom balance in chemical equations.

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

• Determine the solubility of compounds

• Write the complete ionic equation

• Balance the molecular equation

• Identify spectator ions

How do you balance the number of nitrate ions in the reaction?

• Add a coefficient of 3 in front of lead(II) carbonate

• Add a coefficient of 2 in front of ammonium nitrate

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

• Add a coefficient of 3 in front of ammonium carbonate

Which compounds are generally soluble?

• Compounds with lead ions

• Compounds with nitrate ions

• Compounds with carbonate ions

• Compounds with sulfate ions

What happens to lead(II) carbonate in the reaction?

• It reacts with ammonium ions

• It dissolves in water

• It remains as a solid precipitate

• It forms a gas

What is the role of spectator ions in a reaction?

• They participate in the reaction

• They change the state of the reactants

• They remain unchanged and do not participate

• They balance the charge of the products

Which ions are considered spectator ions in this reaction?

• Lead ions

• Carbonate ions

• Hydroxide ions

• Nitrate and ammonium ions

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

• Positive one

• Zero

• Positive two

• Negative two

Why is it important to ensure charge balance in a net ionic equation?

• To maintain the conservation of charge

• To ensure the reaction is spontaneous

• To maintain the conservation of mass

• To ensure the reaction is balanced

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

• Identify the spectator ions

• Write the complete ionic equation

• Ensure charge and atom balance

• Determine the solubility of compounds

What is the net ionic equation for the reaction between lead(II) nitrate and ammonium carbonate?

• 2NH4^+ + CO3^2- → (NH4)2CO3

• Pb^2+ + 2NH4^+ → Pb(NH4)2

• Pb^2+ + 2NO3^- → Pb(NO3)2

• Pb^2+ + CO3^2- → PbCO3(s)