Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between lithium hydroxide (LiOH) and phosphoric acid (H3PO4). It begins by balancing the molecular equation, then assigns states to each substance, identifying LiOH as a strong base and H3PO4 as a weak acid. The tutorial proceeds to write the complete ionic equation, highlighting the dissociation of strong electrolytes. Finally, it identifies the net ionic equation by removing spectator ions, ensuring charge balance and atom count are correct.

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

• Identify spectator ions

• Balance the molecular equation

• Split strong electrolytes into ions

• Determine the states of substances

Why is lithium hydroxide considered a strong base?

• It forms a precipitate

• It is a weak acid

• It is insoluble in water

• It dissociates completely in water

Which of the following is true about phosphoric acid in this reaction?

• It is a weak acid and does not split into ions

• It dissociates completely in water

• It forms a solid precipitate

• It is a strong acid

What is the state of lithium phosphate in the reaction?

• Solid

• Liquid

• Gas

• Aqueous

What is the purpose of splitting strong electrolytes into ions?

• To form a precipitate

• To determine the states of substances

• To identify spectator ions

• To balance the equation

Which ions are not split apart in net ionic equations?

• Gas ions

• Aqueous ions

• Spectator ions

• Solid ions

What is the net charge on both sides of the net ionic equation?

• Positive

• Negative

• Variable

• Zero

What is the significance of a balanced net ionic equation?

• It identifies all spectator ions

• It ensures charge and atom balance

• It indicates the reaction is complete

• It shows the formation of a precipitate

Which of the following is not a step in forming the net ionic equation?

• Balancing the molecular equation

• Identifying spectator ions

• Splitting solids into ions

• Determining the states of substances

What happens to spectator ions in the net ionic equation?

• They form a precipitate

• They are included in the final equation

• They are removed from the equation

• They change states