Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between zinc and acetic acid. It begins by introducing the concept of net ionic equations and the importance of balancing the molecular equation first. The tutorial then details how to assign states to each substance, emphasizing the properties of weak acids and solubility rules. The complete ionic equation is formed by splitting strong electrolytes into ions, and the net ionic equation is derived by removing spectator ions. The video concludes with a reminder to be cautious with weak acids, as they are weak electrolytes.

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

• Determine the states of substances

• Identify spectator ions

• Balance the molecular equation

• Split strong electrolytes into ions

How do you balance the molecular equation for zinc and acetic acid?

• Add more zinc

• Add more acetic acid

• Double the acetate ions

• Remove hydrogen

What state is assigned to zinc in the net ionic equation?

• Gas

• Aqueous

• Liquid

• Solid

Why is acetic acid not split into ions in the complete ionic equation?

• It is a strong acid

• It is a weak electrolyte

• It is insoluble

• It is a gas

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

• 1+

• 2+

• 2-

• 1-

What happens to spectator ions in the net ionic equation?

• They are included in the final equation

• They are doubled

• They are converted to gases

• They are removed from the equation

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

• Identify spectator ions

• Add more reactants

• Write the states of substances

• Balance the charges

Why is it important to recognize acetic acid as a weak electrolyte?

• It alters the temperature

• It determines the splitting of ions

• It affects the solubility

• It changes the color of the solution

What is the role of hydrogen gas in the net ionic equation?

• It is a reactant

• It is a product

• It is a catalyst

• It is a solvent

What is the significance of the final net ionic equation?

• It provides the molecular weights

• It shows all reactants and products

• It highlights only the participating ions

• It lists all spectator ions