Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between copper(II) chloride and sodium sulfide. It begins with balancing the molecular equation, followed by determining the solubility states of the reactants and products. The tutorial then demonstrates how to write the complete ionic equation and identify spectator ions. Finally, it presents the net ionic equation, ensuring charge and atom balance.

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

• Identify spectator ions

• Balance the molecular equation

• Determine the solubility of compounds

• Write the complete ionic equation

Why do we add a coefficient of 2 in front of NaCl in the molecular equation?

• To balance the chlorine atoms

• To balance the copper atoms

• To balance the sodium atoms

• To balance the sulfide ions

Which of the following compounds is generally insoluble?

• Sodium sulfide

• Sodium chloride

• Copper(II) sulfide

• Potassium nitrate

What is the charge of the copper ion in the dissociation process?

• 1+

• 2+

• 1-

• 2-

In the complete ionic equation, which ion is not split apart?

• Chloride ion

• Sodium ion

• Copper(II) sulfide

• Sulfide ion

What are spectator ions?

• Ions that are insoluble

• Ions that participate in the reaction

• Ions that do not change during the reaction

• Ions that form a precipitate

Which ions are considered spectator ions in this reaction?

• Copper and chloride ions

• Sodium and sulfide ions

• Sodium and chloride ions

• Copper and sulfide ions

What is the net charge of the final net ionic equation?

• 0

• 2-

• 1+

• 2+

Why is it important to ensure that charges are conserved in the net ionic equation?

• To balance the atoms

• To identify spectator ions

• To maintain electrical neutrality

• To ensure the reaction is correct

What is the final product of the reaction between copper(II) chloride and sodium sulfide?

• Sodium chloride

• Copper(II) sulfide

• Sodium sulfide

• Copper(II) chloride