Net Ionic Equations and Electrolytes

This video tutorial explains how to write the net ionic equation for the reaction between aluminum and hydrochloric acid. It covers balancing the molecular equation, assigning states to substances, splitting strong electrolytes into ions, forming the complete ionic equation, identifying and crossing out spectator ions, and finally deriving the net ionic equation.

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

• Balance the molecular equation

• Identify spectator ions

• Determine the charges of ions

• Write the states of substances

Which of the following is a strong electrolyte that dissociates in water?

• Hydrogen gas

• Aluminum

• Hydrochloric acid

• Aluminum chloride

What is the charge of the aluminum ion in the reaction?

• 0

• 3+

• 2+

• 1+

Which ion is considered a spectator ion in this reaction?

• Aluminum ion

• Hydrogen ion

• Chloride ion

• Hydrogen gas

What is the net ionic equation for the reaction between aluminum and hydrochloric acid?

• 2Al + 6HCl -> 2AlCl3 + 3H2

• Al + 3H+ -> Al3+ + 3H2

• Al + HCl -> AlCl3 + H2

• 2Al + 6H+ -> 2Al3+ + 3H2