Ionic Equations and Reactions

The video tutorial explains how to write the net ionic equation for the reaction between copper(II) oxide (CuO) and sulfuric acid (H2SO4). It begins by introducing the concept of net ionic equations and proceeds to balance the molecular equation. The tutorial then assigns states to the compounds involved, identifying copper(II) oxide as a solid and sulfuric acid as aqueous. The video explains how to split strong electrolytes into their ions and identifies spectator ions, which are then removed to finalize the net ionic equation. The tutorial concludes by verifying that the equation is balanced in terms of both atoms and charge.

What is the assumption made about sulfuric acid in the reaction with copper(II) oxide?

• It forms a precipitate.

• It completely ionizes.

• It does not ionize.

• It partially ionizes.

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

• Write the net ionic equation directly.

• Determine the solubility of products.

• Balance the molecular equation.

• Identify spectator ions.

What state is assigned to copper(II) oxide in the reaction?

• Solid

• Aqueous

• Gas

• Liquid

Why is copper sulfate considered soluble in this reaction?

• It forms a gas.

• It is a strong acid.

• It is a weak electrolyte.

• It dissolves in water.

What is the role of a strong electrolyte in the ionic equation?

• It dissociates into ions.

• It evaporates.

• It forms a precipitate.

• It remains intact.

Which ions are not split in the net ionic equation?

• Aqueous ions

• Solid, liquid, or gas ions

• Only gas ions

• All ions

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

• 1+

• 2+

• 1-

• 2-

Which ion is identified as a spectator ion in this reaction?

• Sulfate ion

• Hydrogen ion

• Copper ion

• Water molecule

What is the final check to ensure the net ionic equation is correct?

• Check for color change.

• Ensure the equation is balanced in terms of atoms and charge.

• Verify the temperature change.

• Confirm the formation of a precipitate.

What is the net ionic equation used to represent?

• The formation of a solid.

• Only the ions that participate in the reaction.

• The reaction of all ions in solution.

• The complete molecular equation.