Net Ionic Equations and Charge Balance

The video tutorial explains how to write a balanced net ionic equation for the reaction between zinc sulfate and ammonium sulfide. It begins with balancing the molecular equation, identifying the states of each substance, and then splitting the strong electrolytes into ions to form the complete ionic equation. Spectator ions are removed to derive the net ionic equation, ensuring that both charge and atoms are balanced. The tutorial concludes with a review of the balanced net ionic equation and the importance of charge conservation.

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

• Identify spectator ions

• Balance the molecular equation

• Determine solubility

• Write the complete ionic equation

Which of the following compounds is generally insoluble?

• Zinc sulfide

• Ammonium sulfide

• Ammonium ion

• Zinc sulfate

What happens to insoluble compounds in a reaction?

• They become gaseous

• They remain unchanged

• They form a precipitate

• They dissolve completely

What is the role of ammonium sulfide in the reaction?

• It dissolves completely

• It is a reactant that forms a solid

• It is a spectator ion

• It acts as a precipitate

What is the purpose of splitting strong electrolytes into ions?

• To determine solubility

• To form the complete ionic equation

• To identify spectator ions

• To balance the equation

Which ions are not included in the net ionic equation?

• Spectator ions

• Precipitate ions

• Reactant ions

• Product ions

Which of the following is a spectator ion in the reaction?

• Sulfide ion

• Ammonium ion

• Sulfate ion

• Zinc ion

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

• Zero

• Negative

• Positive

• Variable

Why is it important to ensure charge balance in the net ionic equation?

• To satisfy the law of conservation of charge

• To conserve mass

• To ensure the reaction occurs

• To maintain chemical equilibrium

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

• Balancing atoms

• Identifying spectator ions

• Writing the complete ionic equation

• Ensuring charge balance