Net Ionic Equations and Spectator Ions

This video tutorial guides viewers through writing a balanced net ionic equation for the reaction between sulfuric acid (H2SO4) and zinc carbonate (ZnCO3). It begins with balancing the molecular equation, then assigns states to each substance based on solubility rules. The tutorial explains how to split strong electrolytes into ions for the complete ionic equation and identifies spectator ions to derive the net ionic equation. The video concludes by ensuring charge conservation and atom balance in the final equation.

What is the first step in balancing net ionic equations?

• Balance the molecular equation

• Split strong electrolytes into ions

• Write the states of substances

• Identify spectator ions

Which of the following is insoluble in water?

• Zinc sulfate

• Sulfuric acid

• Carbon dioxide

• Zinc carbonate

What state is assigned to sulfuric acid in the reaction?

• Solid

• Liquid

• Gas

• Aqueous

What is the charge of the sulfate ion?

• 1+

• 2+

• 2-

• 1-

Which of the following is not split into ions in net ionic equations?

• Aqueous solutions

• Gases

• None of the above

• Strong electrolytes

What is a spectator ion in this reaction?

• Hydrogen ion

• Zinc ion

• Sulfate ion

• Carbon dioxide

What happens to spectator ions in the net ionic equation?

• They are included

• They are removed

• They are halved

• They are doubled

What must be conserved in a balanced net ionic equation?

• Mass only

• Neither mass nor charge

• Charge only

• Both mass and charge

What is the charge on the zinc ion in the products?

• 2+

• 1+

• 2-

• 1-

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

• Balancing atoms

• Identifying spectator ions

• Writing the states

• Ensuring charge balance