Net Ionic Equations and Electrolytes

This video tutorial guides viewers through the process of balancing net ionic equations, specifically for the reaction between aluminum and sulfuric acid. It begins with balancing the molecular equation, assigning states to each substance, and then forming the complete ionic equation. The tutorial explains how to identify and remove spectator ions to derive the net ionic equation, ensuring that atoms and charges are conserved. The video concludes with a summary 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

Which state is assigned to aluminum in the reaction?

• Aqueous

• Solid

• Liquid

• Gas

Sulfuric acid is classified as which type of electrolyte?

• Non-electrolyte

• None of the above

• Weak electrolyte

• Strong electrolyte

What is the charge of the sulfate ion in the complete ionic equation?

• 3+

• 2-

• 0

• 1+

How many hydrogen ions are present in the complete ionic equation?

• Two

• Four

• Six

• Eight

What is the purpose of identifying spectator ions?

• To simplify the net ionic equation

• To calculate the reaction rate

• To determine the states of substances

• To balance the molecular equation

Which ions are considered spectator ions in this reaction?

• None of the above

• Sulfate ions

• Aluminum ions

• Hydrogen ions

What is conserved in a balanced net ionic equation?

• Only atoms

• Only charge

• Neither atoms nor charge

• Both atoms and charge

How many aluminum atoms are present in the balanced net ionic equation?

• Four

• Three

• Two

• One

What is the total positive charge on the reactant side of the net ionic equation?

• 6+

• 5+

• 4+

• 3+