Net Ionic Equations and Spectator Ions

This video tutorial demonstrates how to balance the net ionic equation for lead and silver nitrate. It begins with balancing the molecular equation, identifying the states of each substance, and then proceeds to write the complete ionic equation. The tutorial explains how to identify and remove spectator ions to derive the net ionic equation, ensuring both charge and atom balance. The video concludes with a review of the balanced net ionic equation.

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

• Determine the states of substances

• Identify spectator ions

• Split strong electrolytes into ions

• Balance the molecular equation

Why do we put a '2' in front of silver nitrate in the molecular equation?

• To balance the number of nitrate ions

• To balance the number of lead atoms

• To balance the number of silver atoms

• To balance the number of oxygen atoms

What state is assigned to nitrates based on solubility rules?

• Gas

• Aqueous

• Liquid

• Solid

What is the charge of a silver ion in the complete ionic equation?

• 1+

• 2-

• 2+

• 1-

How do you determine the charge of lead in the products?

• By the number of silver ions

• By the number of oxygen atoms

• By the number of nitrate ions

• By the number of lead atoms

What are spectator ions?

• Ions that are only in the products

• Ions that participate in the reaction

• Ions that do not change during the reaction

• Ions that are only in the reactants

Which ions are crossed out to find the net ionic equation?

• Only silver ions

• Spectator ions

• Only lead ions

• All ions

What must be balanced in the final net ionic equation?

• Only the charges

• Only the atoms

• Neither atoms nor charges

• Both atoms and charges

What is the charge balance in the final net ionic equation?

• 1+ on both sides

• 2+ on both sides

• 1- on both sides

• 2- on both sides

What is the role of Dr. B in the video?

• To introduce new chemical elements

• To demonstrate a chemical experiment

• To discuss the history of chemistry

• To explain the balanced net ionic equation