Net Ionic Equations and Reactions

This video tutorial explains how to write a balanced net ionic equation for the reaction between iron(III) nitrate and sodium hydroxide. It covers balancing the molecular equation, determining the states of substances, and splitting strong electrolytes into ions to form the complete ionic equation. The tutorial also demonstrates how to identify and remove spectator ions to derive the net ionic equation, ensuring charge conservation throughout the process.

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

• Write the complete ionic equation

• Assign states to substances

• Balance the molecular equation

• Identify spectator ions

How many nitrate ions are needed to balance the equation for iron(III) nitrate and sodium hydroxide?

• Three

• Two

• One

• Four

What state is assigned to iron(III) nitrate in the reaction?

• Solid

• Liquid

• Gas

• Aqueous

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

• Iron(III) hydroxide

• Sodium hydroxide

• Both sodium hydroxide and iron(III) nitrate

• Iron(III) nitrate

What is the charge on the nitrate ion?

• 2+

• 1-

• 1+

• 2-

Which ions are considered spectator ions in this reaction?

• Iron ions

• Hydroxide ions

• Sodium ions

• Nitrate ions

What is the net ionic equation for the reaction between iron(III) nitrate and sodium hydroxide?

• Fe3+ + 3NO3- → Fe(NO3)3

• Fe3+ + 3Na+ → FeNa3

• Fe3+ + 3OH- → Fe(OH)3

• Na+ + OH- → NaOH

Why is iron(III) hydroxide considered a precipitate in this reaction?

• It is soluble in water

• It is insoluble and forms a solid

• It reacts with sodium ions

• It dissolves in the solution

How is charge conservation demonstrated in the net ionic equation?

• The total charge on both sides is zero

• The total charge on both sides is positive

• The total charge on both sides is negative

• The charges are not conserved

What is the role of hydroxide ions in the net ionic equation?

• They are spectator ions

• They react with iron ions to form a precipitate

• They dissolve in water

• They balance the equation