Net Ionic Equations and Spectator Ions

This video tutorial explains how to write the balanced net ionic equation for the reaction between sodium sulfite (Na2SO3) and dilute nitric acid (HNO3). It covers balancing the molecular equation, assigning states to each substance, splitting strong electrolytes into ions, and forming the complete and net ionic equations. The tutorial emphasizes the importance of charge conservation and atom balance in the final net ionic equation.

What is the significance of using dilute nitric acid in the reaction with sodium sulfite?

• It increases the reaction rate significantly.

• It prevents the formation of unwanted byproducts.

• It ensures the reaction is exothermic.

• It changes the color of the solution.

How do you balance the sodium atoms in the molecular equation of Na2SO3 and HNO3?

• Add a coefficient of 2 in front of NaNO3.

• Add a coefficient of 3 in front of H2O.

• Add a coefficient of 3 in front of Na2SO3.

• Add a coefficient of 2 in front of HNO3.

Which of the following states is assigned to sodium compounds in the reaction?

• Solid

• Liquid

• Aqueous

• Gas

What is the state of nitric acid in the reaction?

• Liquid

• Solid

• Gas

• Aqueous

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

• 1+

• 1-

• 2-

• 3-

Which ions are considered spectator ions in this reaction?

• Sodium and nitrate ions

• Hydrogen and sulfite ions

• Sodium and hydrogen ions

• Nitrate and sulfite ions

What is the purpose of removing spectator ions in the net ionic equation?

• To change the physical state of the reactants.

• To balance the equation more easily.

• To increase the reaction rate.

• To simplify the equation by showing only the ions that participate in the reaction.

How is charge conservation demonstrated in the net ionic equation?

• By ensuring the total charge on the reactant side is greater.

• By ensuring the total charge on both sides is zero.

• By having more positive ions than negative ions.

• By having more negative ions than positive ions.

What is the final step in writing the net ionic equation?

• Writing the states of each compound.

• Balancing the molecular equation.

• Adding coefficients to balance atoms.

• Removing spectator ions.

Why might the negative ion be placed second in the net ionic equation?

• It is required for charge balance.

• It affects the solubility of the compounds.

• It changes the reaction outcome.

• It is a standard convention for clarity.