Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between sodium phosphate and magnesium nitrate. It begins with balancing the molecular equation, determining the solubility and states of the reactants, and then splitting strong electrolytes into ions to form the complete ionic equation. Spectator ions are crossed out to derive the net ionic equation, ensuring the charges are balanced and the equation is neutral.

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

• Determine the solubility of compounds

• Identify spectator ions

• Write the complete ionic equation

• Balance the molecular equation

Which of the following compounds is typically insoluble in water?

• Sodium nitrate

• Magnesium phosphate

• Sodium phosphate

• Magnesium nitrate

What is the state of sodium compounds in aqueous solutions?

• Solid

• Liquid

• Aqueous

• Gas

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

• Two

• Three

• Six

• Nine

What is the charge of a nitrate ion?

• 1+

• 1-

• 2+

• 2-

What is the purpose of identifying spectator ions in a reaction?

• To determine solubility

• To balance the equation

• To calculate molar mass

• To simplify the net ionic equation

Which ions are removed as spectator ions in the given reaction?

• Magnesium and nitrate ions

• Sodium and phosphate ions

• Sodium and nitrate ions

• Magnesium and phosphate ions

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

• Variable

• Positive

• Negative

• Zero

Why is it important to verify the atom count in the net ionic equation?

• To calculate reaction rate

• To determine solubility

• To identify spectator ions

• To ensure the equation is balanced

In a net ionic equation, which type of compounds are not split into ions?

• Gases

• Liquids

• Solids

• Aqueous compounds