Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between hydrofluoric acid (HF) and lithium hydroxide (LiOH). It begins with balancing the molecular equation, then assigns states to each substance. 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. The video concludes by ensuring the equation is balanced in terms of atoms and charge.

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

• Identify spectator ions

• Balance the molecular equation

• Determine the states of substances

• Write the complete ionic equation

Why is hydrofluoric acid not split into ions in the net ionic equation?

• It is a weak acid

• It is a weak base

• It is a strong acid

• It is a strong base

Which of the following is a strong base that dissociates completely in water?

• Lithium fluoride

• Lithium hydroxide

• Hydrofluoric acid

• Water

What is the purpose of splitting strong electrolytes into ions?

• To determine the states of substances

• To write the complete ionic equation

• To identify spectator ions

• To balance the molecular equation

Which ion is identified as a spectator ion in the reaction?

• Hydroxide ion

• Fluoride ion

• Hydrogen ion

• Lithium ion

What happens to spectator ions in the net ionic equation?

• They are balanced separately

• They are removed from the equation

• They are included in the equation

• They are converted to gases

How is charge conservation ensured in the net ionic equation?

• By balancing the number of atoms

• By removing spectator ions

• By ensuring equal charges on both sides

• By adding more ions

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

• Reviewing mass and charge balance

• Balancing the molecular equation

• Adding the states of substances

• Identifying spectator ions

Which of the following is not a product in the reaction between HF and LiOH?

• Lithium fluoride

• Water

• Hydrogen gas

• Fluoride ion

What is the state of water in the net ionic equation?

• Solid

• Liquid

• Gas

• Aqueous