Net Ionic Equations and Spectator Ions

This video tutorial guides viewers through writing a balanced net ionic equation for the reaction between sodium hydroxide (NaOH) and aluminum chloride (AlCl3). It begins with balancing the molecular equation, then discusses the states of each substance, highlighting solubility rules and the formation of a precipitate. The tutorial proceeds to split strong electrolytes into ions to form the complete ionic equation, identifies spectator ions, and derives the net ionic equation. The video concludes by ensuring the equation is balanced in terms of atoms and charge, with aluminum hydroxide as the precipitate.

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

• Write the complete ionic equation

• Determine the solubility of compounds

• Balance the molecular equation

• Identify spectator ions

Which of the following compounds is a strong base and will be aqueous in the reaction?

• Sodium chloride

• Sodium hydroxide

• Aluminum hydroxide

• Aluminum chloride

What happens to hydroxides that are not bonded to group 1 elements?

• They dissolve completely

• They become insoluble

• They form a gas

• They remain aqueous

What is the purpose of splitting strong electrolytes into ions?

• To balance the molecular equation

• To determine the net charge

• To form the complete ionic equation

• To identify the precipitate

What are spectator ions?

• Ions that do not change during the reaction

• Ions that are insoluble

• Ions that form a precipitate

• Ions that participate in the reaction

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

• Ions that form a precipitate

• Spectator ions

• Ions that are insoluble

• Ions that are aqueous

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

• 1+

• 0

• 3-

• 3+

What is the state of aluminum hydroxide in the net ionic equation?

• Solid

• Liquid

• Aqueous

• Gas

Why is it important to ensure the atoms are balanced in the net ionic equation?

• To ensure the reaction is correct

• To identify spectator ions

• To form a precipitate

• To determine solubility

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

• Identifying the precipitate

• Ensuring the net charge is zero

• Writing the states of each substance

• Balancing the molecular equation