Net Ionic Equations and Spectator Ions

This video tutorial explains how to write a balanced net ionic equation for the reaction between zinc sulfate and sodium sulfide. It begins with balancing the molecular equation, then determining the solubility states of the reactants and products. The tutorial proceeds to split strong electrolytes into ions to form the complete ionic equation. Spectator ions are identified and removed to derive the net ionic equation. Finally, the video ensures that both charge and atom counts are balanced in the final equation.

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 is generally soluble in water?

• Zinc sulfide

• Sodium sulfide

• Zinc sulfate

• Lead sulfate

What state symbol is used for a substance that dissolves in water?

• (g)

• (aq)

• (l)

• (s)

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

• 1+

• 2-

• 2+

• 1-

In a net ionic equation, which type of substances are not split into ions?

• Liquids

• Solids

• Gases

• Aqueous solutions

What is the role of spectator ions in a chemical reaction?

• They participate in the reaction

• They change the state of the reaction

• They remain unchanged and do not participate

• They balance the equation

Which ions are considered spectator ions in the reaction between zinc sulfate and sodium sulfide?

• Sulfate ions

• Zinc ions

• Sulfide ions

• Sodium ions

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

• 1-

• 0

• 2+

• 1+

Why is it important to ensure that the net ionic equation is balanced?

• To make the reaction faster

• To ensure the reaction is visible

• To change the state of the reactants

• To satisfy the law of conservation of mass

What is the final product formed in the reaction between zinc sulfate and sodium sulfide?

• Sodium sulfide

• Zinc sulfide

• Sodium sulfate

• Zinc sulfate