Net Ionic Equations and Charge Balance

This video tutorial explains how to balance the net ionic equation for iron(III) nitrate and sodium sulfide. It begins with balancing the molecular equation, followed by determining the states of each substance based on solubility rules. The tutorial then demonstrates how to form the complete ionic equation and identify spectator ions to derive the net ionic equation. The video concludes by ensuring that the charges are balanced in the final equation.

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

• Balance the molecular equation

• Identify spectator ions

• Write the net ionic equation

• Assign states to compounds

How do you balance the number of sodium atoms in the molecular equation?

• Use a coefficient of 3 for sodium nitrate

• Add more sodium sulfide

• Add more sodium nitrate

• Use a coefficient of 6 for sodium nitrate

Which of the following compounds is generally insoluble in water?

• Iron(III) sulfide

• Sodium sulfide

• Iron(III) nitrate

• Sodium nitrate

What is the charge of the nitrate ion?

• 1-

• 1+

• 2+

• 2-

Which ions are considered spectator ions in this reaction?

• Sodium ions

• Sulfide ions

• Iron(III) ions

• Iron(III) sulfide

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

• 0

• 6-

• 3+

• 6+

What happens to spectator ions in the net ionic equation?

• They form a precipitate

• They change their charge

• They are removed from the equation

• They are included in the final equation

What is the purpose of writing a net ionic equation?

• To focus on the ions that participate in the reaction

• To highlight the formation of precipitates

• To show all compounds in a reaction

• To balance the charges in a reaction

Which compound forms a solid precipitate in this reaction?

• Iron(III) sulfide

• Sodium sulfide

• Iron(III) nitrate

• Sodium nitrate

Why is it important to ensure charge balance in a net ionic equation?

• To ensure the reaction is spontaneous

• To confirm the reaction is balanced

• To verify the solubility of compounds

• To determine the reaction rate