Net Ionic Equations and Reactions

This video tutorial explains how to write the net ionic equation for the reaction between hydrochloric acid (HCl) and lithium carbonate (Li2CO3). It begins with balancing the molecular equation, assigning states to each substance, and then splitting strong electrolytes into ions to form the complete ionic equation. Spectator ions are identified and removed to derive the net ionic equation. The tutorial concludes by ensuring that the charges and atoms are balanced in the final equation.

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

• Assigning states to each substance

• Balancing the molecular equation

• Identifying spectator ions

• Writing the complete ionic equation

Why is hydrochloric acid considered aqueous in the reaction?

• It is insoluble in water

• It is a weak acid

• It is a strong acid and dissociates completely

• It reacts with lithium carbonate

Which of the following is not a state assigned to substances in the reaction?

• Aqueous

• Solid

• Liquid

• Gas

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

• 1+

• 2+

• 2-

• 1-

In the complete ionic equation, which ion is paired with a 2- charge?

• Carbonate ion

• Hydrogen ion

• Chloride ion

• Lithium ion

What is the purpose of identifying spectator ions in a reaction?

• To determine solubility

• To balance the equation

• To calculate reaction rate

• To simplify the net ionic equation

Which ions are removed as spectator ions in this reaction?

• Lithium and chloride ions

• Hydrogen and lithium ions

• Hydrogen and carbonate ions

• Carbonate and chloride ions

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

• 2-

• 2+

• 1+

• 0

Why is it important to ensure that the atoms are balanced in the net ionic equation?

• To determine the reaction rate

• To comply with the law of conservation of mass

• To ensure the reaction is endothermic

• To confirm the reaction is spontaneous

What is the final product of the reaction between HCl and Li2CO3?

• Lithium carbonate and hydrochloric acid

• Carbon dioxide and water

• Lithium chloride and carbon dioxide

• Lithium chloride and water