Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between ammonium hydroxide (NH4OH) and acetic acid (CH3COOH). It begins with balancing the molecular equation, then assigns states to each substance, noting the solubility and dissociation properties. The tutorial proceeds to write the complete ionic equation by splitting strong electrolytes into ions. It then derives the net ionic equation by removing spectator ions, ensuring the equation is simplified. The video concludes by verifying that the charges and atoms are balanced on both sides of the equation.

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

• Balance the molecular equation

• Identify spectator ions

• Split strong electrolytes into ions

• Determine the states of substances

Which of the following is true about ammonium hydroxide in the reaction?

• It is a weak acid

• It is a strong electrolyte

• It does not dissociate into ions

• It is insoluble in water

Why is acetic acid considered a weak acid in this reaction?

• It completely dissociates in water

• It is a strong electrolyte

• It does not dissolve in water

• It partially dissociates in water

What is the charge on the ammonium ion in the complete ionic equation?

• 2-

• 2+

• 1+

• 1-

Which ion is not split apart in the net ionic equation?

• Water

• Hydroxide ion

• Acetate ion

• Ammonium ion

What is the purpose of identifying spectator ions?

• To simplify the net ionic equation

• To determine solubility

• To balance the molecular equation

• To identify strong electrolytes

Which ions are removed as spectator ions in this reaction?

• Acetate ions

• Hydroxide ions

• Water molecules

• Ammonium ions

What ensures that the net ionic equation is correctly balanced?

• Equal number of atoms on both sides

• Presence of spectator ions

• Different charges on both sides

• Unequal number of atoms on both sides

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

• Neutral

• Double negative

• Positive

• Negative

What is the significance of balancing charges in a net ionic equation?

• To ensure the reaction is spontaneous

• To identify spectator ions

• To increase reaction rate

• To maintain electrical neutrality