Net Ionic Equations and Reactions

The video tutorial explains how to write the net ionic equation for the reaction between magnesium hydroxide (Mg(OH)2) and nitric acid (HNO3). It begins with balancing the molecular equation and determining the states of the substances involved. The tutorial then discusses the solubility of magnesium hydroxide and the dissociation of nitric acid. The complete ionic equation is written by splitting strong electrolytes into their ions, and spectator ions are identified and removed to derive the net ionic equation. The final net ionic equation is presented, showing the reaction's essential components.

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

• Write the complete ionic equation

• Determine the solubility of products

• Balance the molecular equation

• Identify spectator ions

Why is magnesium hydroxide considered insoluble in water?

• It is a strong acid

• It is a group two hydroxide

• It forms a gas

• It reacts with water

What state is assigned to nitric acid in the reaction?

• Aqueous

• Gas

• Liquid

• Solid

Which of the following is not split into ions in the complete ionic equation?

• Nitric acid

• Magnesium hydroxide

• Hydrogen ions

• Nitrate ions

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

• 1-

• 2+

• 2-

• 1+

What are spectator ions?

• Ions that do not change during the reaction

• Ions that are gases

• Ions that participate in the reaction

• Ions that form a precipitate

Which ions are removed to form the net ionic equation?

• Hydroxide ions

• Nitrate ions

• Magnesium ions

• Hydrogen ions

What is the final product in the net ionic equation for the reaction?

• Magnesium nitrate

• Magnesium hydroxide

• Nitric acid

• Water

What is the role of water in the net ionic equation?

• It is a reactant

• It is a product

• It is a spectator ion

• It is a catalyst

What is the purpose of writing a net ionic equation?

• To show all ions present

• To show only the ions involved in the reaction

• To determine solubility

• To balance the equation