Zinc Reaction and Ionic Equations

This video tutorial explains how to write a balanced net ionic equation for the reaction between zinc metal and lead(II) nitrate. It covers balancing the molecular equation, identifying the states of substances, and splitting strong electrolytes into ions to form the complete ionic equation. The tutorial then demonstrates how to cross out spectator ions to derive the net ionic equation, emphasizing the conservation of charge and mass throughout the process.

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

• Write the complete ionic equation

• Determine the reaction type

• Balance the molecular equation

• Identify spectator ions

Which state is assigned to zinc metal in the reaction?

• Gas

• Solid

• Liquid

• Aqueous

What type of reaction is Zn + Pb(NO3)2?

• Double displacement

• Single displacement

• Synthesis

• Decomposition

What is the charge of the lead ion in lead(II) nitrate?

• 1+

• 4+

• 2+

• 3+

Which ions are considered spectator ions in this reaction?

• Zinc ions

• Hydrogen ions

• Lead ions

• Nitrate ions

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

• Zn + 2NO3^- -> Zn(NO3)2

• Pb^2+ + 2NO3^- -> Pb(NO3)2

• Zn^2+ + 2NO3^- -> Zn(NO3)2

• Zn + Pb^2+ -> Zn^2+ + Pb

Why are spectator ions removed from the complete ionic equation?

• They are gases

• They are not present in the products

• They change the reaction type

• They do not participate in the reaction

What is conserved in a balanced net ionic equation?

• Both mass and charge

• Neither mass nor charge

• Only charge

• Only mass

Which of the following is true about zinc in the reaction?

• It is reduced

• It remains unchanged

• It is a spectator ion

• It is oxidized

What is the final product formed when zinc displaces lead in the reaction?

• Zinc nitrate

• Lead nitrate

• Zinc oxide

• Lead oxide