Net Ionic Equations and Spectator Ions

This video tutorial guides viewers through writing the balanced net ionic equation for the reaction between ammonium sulfate and sodium hydroxide. It begins with balancing the molecular equation, followed by assigning states to each substance based on solubility rules. The tutorial then explains how to form the complete ionic equation by splitting strong electrolytes into ions. Spectator ions are identified and removed to derive the net ionic equation. The video concludes by ensuring charge conservation and discussing the treatment of ammonia as a gas or weak base.

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

• Determine the states of each substance

• Balance the molecular equation

• Identify spectator ions

• Split strong electrolytes into ions

Why is it necessary to adjust coefficients in a chemical equation?

• To change the chemical properties

• To ensure the equation is balanced

• To alter the reaction rate

• To modify the physical state

According to solubility rules, how is ammonium sulfate classified?

• Very soluble

• Slightly soluble

• Insoluble

• Not applicable

What is the state of sodium hydroxide in the reaction?

• Aqueous

• Gas

• Liquid

• Solid

Which ion is always one plus in the complete ionic equation?

• Sulfate ion

• Ammonium ion

• Sodium ion

• Hydroxide ion

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

• Two minus

• One plus

• Two plus

• One minus

What is the purpose of identifying spectator ions?

• To balance the equation

• To simplify the net ionic equation

• To change the reaction rate

• To determine solubility

Which ions are removed as spectator ions in this reaction?

• Hydroxide and water

• Sodium and sulfate

• Ammonium and sodium

• Ammonium and ammonia

What is conserved in the balanced net ionic equation?

• Neither mass nor charge

• Charge only

• Both mass and charge

• Mass only

How is ammonia treated in the net ionic equation if it is a gas?

• It is split into ions

• It is left intact

• It is dissolved in water

• It is removed as a spectator ion