Net Ionic Equations and Spectator Ions

This video tutorial explains how to write the net ionic equation for the reaction between sodium carbonate (Na2CO3) and iron(III) chloride (FeCl3). It begins with balancing the molecular equation and identifying the states of each compound. The tutorial then demonstrates how to split the compounds into their respective ions to form the complete ionic equation. Finally, it shows how to identify and remove spectator ions to derive the net ionic equation, resulting in the formation of iron(III) carbonate as a solid precipitate.

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

• Identify spectator ions

• Balance the molecular equation

• Determine the solubility of compounds

• Write the complete ionic equation

Which of the following compounds is generally soluble in water?

• Lead(II) chloride

• Calcium carbonate

• Sodium carbonate

• Iron(III) carbonate

What state symbol is used for a substance that is insoluble in water?

• (g)

• (aq)

• (l)

• (s)

How many sodium ions are present in the complete ionic equation for the reaction?

• Two

• Four

• Eight

• Six

What is the charge on the carbonate ion?

• 1-

• 2+

• 2-

• 1+

Why don't we split solids in net ionic equations?

• They are not reactive

• They are already dissociated

• They remain intact in the test tube

• They are spectator ions

What are spectator ions?

• Ions that are insoluble

• Ions that form the precipitate

• Ions that do not change during the reaction

• Ions that participate in the reaction

Which ions are eliminated to form the net ionic equation?

• Product ions

• Reactant ions

• Spectator ions

• Precipitate ions

What is the net ionic equation for the reaction between Na2CO3 and FeCl3?

• Na^+ + Cl^- → NaCl

• Na2CO3 + FeCl3 → NaCl + Fe2(CO3)3

• Fe^3+ + CO3^2- → FeCO3

• 3CO3^2- + 2Fe^3+ → Fe2(CO3)3(s)

What is the final product formed in the reaction between sodium carbonate and iron(III) chloride?

• Sodium carbonate

• Iron(III) chloride

• Sodium chloride

• Iron(III) carbonate