Net Ionic Equations and Spectator Ions

This video tutorial guides viewers through writing the balanced net ionic equation for the reaction between zinc oxide (ZnO) and hydrochloric acid (HCl). It begins with balancing the molecular equation, assigning states to each substance, and then splitting strong electrolytes into ions for the complete ionic equation. The tutorial concludes by deriving the net ionic equation by removing spectator ions and ensuring the equation is balanced.

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

• Identify spectator ions

• Balance the molecular equation

• Assign states to substances

• Split strong electrolytes into ions

How do you balance the molecular equation for the reaction between zinc oxide and hydrochloric acid?

• Add a coefficient of 2 in front of water

• Add a coefficient of 2 in front of zinc chloride

• Add a coefficient of 2 in front of hydrochloric acid

• Add a coefficient of 2 in front of zinc oxide

What state is assigned to zinc oxide in the reaction?

• Aqueous

• Liquid

• Gas

• Solid

Which of the following substances is considered a strong acid in the reaction?

• Water

• Hydrochloric acid

• Zinc oxide

• Zinc chloride

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

• 2-

• 1+

• 2+

• 1-

Which ions are considered spectator ions in this reaction?

• Hydrogen ions

• Zinc ions

• Oxide ions

• Chloride ions

What is the purpose of removing spectator ions in a net ionic equation?

• To determine the products

• To balance the charges

• To simplify the equation

• To identify the reactants

In the net ionic equation, what is the charge balance between reactants and products?

• Charges are not considered

• Charges are balanced

• Reactants have a higher charge

• Products have a higher charge

What is the final product in the net ionic equation for the reaction?

• Zinc chloride

• Water

• Hydrogen gas

• Zinc oxide

Why is it important to count the atoms in the net ionic equation?

• To ensure the equation is balanced

• To identify spectator ions

• To determine the reaction rate

• To find the limiting reactant