Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between iron(III) chloride and potassium phosphate. It begins by balancing the molecular equation, then discusses the solubility rules to determine the states of the compounds involved. The tutorial proceeds to split strong electrolytes into ions for the complete ionic equation and identifies spectator ions to derive the net ionic equation. The video concludes with a balanced net ionic equation, ensuring both atoms and charges are balanced.

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

• Identify spectator ions

• Write the complete ionic equation

• Balance the molecular equation

• Determine the solubility of compounds

Why is potassium phosphate considered soluble?

• It is a chloride compound

• It forms a precipitate

• It is bonded to a group 1 element

• It is a transition metal compound

Which of the following is insoluble in the reaction?

• Potassium chloride

• Iron(III) phosphate

• Iron(III) chloride

• Potassium phosphate

What is the charge of the iron ion in the complete ionic equation?

• 3+

• 1+

• 2+

• 0

In the complete ionic equation, which ion is not split into its components?

• Potassium ion

• Iron(III) phosphate

• Chloride ion

• Iron(III) ion

What are spectator ions?

• Ions that are insoluble

• Ions that participate in forming the precipitate

• Ions that are only in the products

• Ions that do not change during the reaction

Which ions are crossed out as spectator ions in this reaction?

• Iron(III) ions and phosphate ions

• Potassium ions and chloride ions

• Iron(III) ions and chloride ions

• Potassium ions and phosphate ions

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

• 3+

• 3-

• 0

• 1+

What ensures that the net ionic equation is balanced?

• Equal number of atoms on both sides

• Equal number of molecules on both sides

• Equal number of ions on both sides

• Equal number of compounds on both sides

What is the final product of the reaction between FeCl3 and K3PO4?

• K3PO4

• FeCl2

• KCl

• FePO4