Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between aluminum nitrate and sodium phosphate. It begins with balancing the molecular equation, followed by determining the solubility and states of the reactants and products. The tutorial then demonstrates how to split strong electrolytes into ions to form the complete ionic equation. Spectator ions are identified and removed to derive the net ionic equation. The video concludes by ensuring that the charges and atoms are balanced in the final equation.

What is the first step in balancing net ionic equations?

• Write the net ionic equation

• Identify spectator ions

• Balance the molecular equation

• Determine solubility

How many sodium atoms are needed to balance the molecular equation for aluminum nitrate and sodium phosphate?

• Four

• Three

• Two

• One

According to solubility rules, which of the following is generally insoluble?

• Aluminum phosphate

• Nitrates

• Potassium compounds

• Sodium phosphate

What state symbol is used for substances that dissolve and dissociate into ions?

• (aq)

• (g)

• (l)

• (s)

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

• 3+

• 2+

• 1+

• 4+

Which ion is not split apart in the net ionic equation?

• Aluminum phosphate

• Nitrate ion

• Phosphate ion

• Sodium ion

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 insoluble

Which ions are crossed out to find the net ionic equation?

• Spectator ions

• Product ions

• Reactant ions

• All ions

What must be balanced in the final net ionic equation?

• Only the charges

• Neither atoms nor charges

• Only the atoms

• Both atoms and charges

What is the net charge on both sides of the balanced net ionic equation?

• Variable

• Zero

• Negative

• Positive