Net Ionic Equations and Spectator Ions

The video tutorial explains how to write the net ionic equation for the reaction between iron(II) chloride (FeCl2) and sodium carbonate (Na2CO3). It begins with balancing the molecular equation, followed by determining the states of the substances using solubility rules. The tutorial then demonstrates how to split strong electrolytes into ions to form the complete ionic equation. Finally, it shows how to derive the net ionic equation by removing spectator ions, resulting in the formation of solid iron(II) carbonate (FeCO3).

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

• Write the complete ionic equation

• Balance the molecular equation

• Determine the charges of ions

• Identify spectator ions

Which of the following is generally soluble in water?

• Iron(II) carbonate

• Sodium chloride

• Calcium carbonate

• Lead(II) sulfate

What is the state of iron(II) carbonate in the reaction?

• Solid

• Gas

• Liquid

• Aqueous

What is the charge of the carbonate ion?

• 2+

• 3-

• 1-

• 2-

Why don't we split iron(II) carbonate into ions in the complete ionic equation?

• It is a gas

• It is a liquid

• It is a solid

• It is a weak electrolyte

What are spectator ions?

• Ions that participate in the reaction

• Ions that do not change during the reaction

• Ions that form a precipitate

• Ions that are gases

Which ions are considered spectator ions in this reaction?

• Iron(II) carbonate

• Iron(II) ions

• Sodium ions

• Carbonate ions

What is the net ionic equation for the reaction between FeCl2 and Na2CO3?

• Fe2+ + CO3 2- → FeCO3

• Fe2+ + 2Cl- → FeCl2

• FeCO3 → Fe2+ + CO3 2-

• Na+ + Cl- → NaCl

What happens to the spectator ions in the net ionic equation?

• They change their charge

• They form a new compound

• They are removed from the equation

• They are included in the equation

What is the final product formed in the reaction between FeCl2 and Na2CO3?

• Sodium carbonate

• Iron(II) chloride

• Iron(II) carbonate

• Sodium chloride