Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between lead(II) nitrate and potassium hydroxide. It begins with balancing the molecular equation, followed by determining the states of each substance using solubility rules. The tutorial then demonstrates how 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 that the charges and atoms are balanced in the final equation.

What is the first step in balancing the molecular equation for the reaction between lead(II) nitrate and potassium hydroxide?

• Write the net ionic equation.

• Determine the solubility of the compounds.

• Balance the number of nitrates.

• Identify the spectator ions.

According to solubility rules, which of the following is generally soluble?

• Lead(II) nitrate

• Hydroxides

• Potassium compounds

• Lead(II) hydroxide

What is the state of lead(II) hydroxide in the reaction?

• Aqueous

• Liquid

• Gas

• Solid

What is the purpose of splitting strong electrolytes into ions?

• To balance the molecular equation

• To identify spectator ions

• To form the complete ionic equation

• To determine solubility

Which ions are considered spectator ions in this reaction?

• Potassium ions

• Nitrate ions

• Hydroxide ions

• Lead ions

What is the net ionic equation for the reaction between lead(II) nitrate and potassium hydroxide?

• 2Pb^2+ + 4OH^- → 2Pb(OH)2

• 2K^+ + 2NO3^- → 2KNO3

• Pb^2+ + 2OH^- → Pb(OH)2

• Pb(NO3)2 + 2KOH → Pb(OH)2 + 2KNO3

What is the charge balance in the net ionic equation?

• Net charge of +1

• Net charge of zero

• Net charge of -2

• Net charge of +2

What forms as a result of the reaction between lead(II) nitrate and potassium hydroxide?

• A gas

• A liquid

• A precipitate

• An aqueous solution

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

• To write the molecular equation

• To determine solubility

• To ensure the reaction is correct

• To identify spectator ions

What is the role of Dr. B in the video?

• To demonstrate a chemical experiment

• To introduce new chemical compounds

• To explain the balanced net ionic equation

• To discuss the history of chemistry