Net Ionic Equations and Reactions

This video tutorial explains how to write the balanced net ionic equation for the reaction between iron and dilute sulfuric acid. It begins by balancing the molecular equation, identifying the states of the substances involved, and then forming the complete ionic equation. The tutorial proceeds to derive the net ionic equation by eliminating spectator ions and ensuring charge balance. The video emphasizes the importance of balancing both the atoms and the charges in the equation.

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

• Split strong electrolytes into ions

• Balance the molecular equation

• Determine the states of substances

• Identify spectator ions

Why is sulfuric acid considered aqueous in this reaction?

• It is a gas

• It is a solid

• It dissolves and dissociates into ions

• It is a weak acid

What is the state of iron in the reaction?

• Aqueous

• Solid

• Gas

• Liquid

What is the charge of the sulfate ion?

• 1+

• 2-

• 3+

• 0

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

• Sulfuric acid

• Iron

• Iron(III) sulfate

• Hydrogen gas

What are spectator ions?

• Ions that participate in the reaction

• Ions that do not change during the reaction

• Ions that are gases

• Ions that are solids

How many hydrogen ions are present in the reactants of the net ionic equation?

• Two

• Four

• Six

• Eight

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

• 0

• 6-

• 3+

• 6+

What ensures that the net ionic equation is balanced?

• Equal number of electrons on both sides

• Equal number of atoms on both sides

• Equal number of molecules on both sides

• Equal number of ions on both sides

What is the purpose of writing a net ionic equation?

• To balance the molecular equation

• To highlight the ions that participate in the reaction

• To identify the states of substances

• To show all reactants and products