Net Ionic Equations and Spectator Ions

The video tutorial explains how to write the balanced net ionic equation for the reaction between sulfuric acid (H2SO4) and sodium carbonate (Na2CO3). It begins by ensuring the molecular equation is balanced, then assigns states to each substance. The tutorial proceeds to split strong electrolytes into ions to form the complete ionic equation. Spectator ions, which do not change during the reaction, are identified and removed to derive the net ionic equation. The process is explained step-by-step, highlighting key concepts such as balancing equations, identifying states, and understanding ionic charges.

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

• Balance the molecular equation

• Identify spectator ions

• Determine the states of substances

• Write the complete ionic equation

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

• Na2CO3

• CO2

• H2O

• H2SO4

What is the state of sodium carbonate in the reaction?

• Solid

• Liquid

• Gas

• Aqueous

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

• 1+

• 2+

• 2-

• 1-

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

• Na2CO3

• Na+

• H2SO4

• H2O

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

• 1+

• 2-

• 1-

• 2+

Which ions are considered spectator ions in this reaction?

• Sodium ions

• Sulfate ions

• Hydrogen ions

• Carbonate ions

What happens to spectator ions in the net ionic equation?

• They form new compounds

• They are included in the equation

• They are removed from the equation

• They change their charge

What is the final product that remains unchanged in the net ionic equation?

• Carbon dioxide

• Sulfate ions

• Water

• Sodium ions

What is the purpose of writing a net ionic equation?

• To show all compounds involved

• To focus on the ions that participate in the reaction

• To highlight the spectator ions

• To balance the molecular equation