Net Ionic Equations and Spectator Ions

This video tutorial explains how to write the net ionic equation for the reaction between sodium carbonate and magnesium nitrate. It begins with balancing the molecular equation, then assigns states to each compound using solubility rules. The tutorial proceeds to split strong electrolytes into ions to form the complete ionic equation. Finally, it identifies and removes spectator ions to derive the net ionic equation, emphasizing the importance of understanding solubility and ion charges.

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

• Identify spectator ions

• Balance the molecular equation

• Write the complete ionic equation

• Determine the solubility of compounds

Which of the following compounds is typically soluble in water?

• Magnesium carbonate

• Calcium sulfate

• Sodium carbonate

• Lead chloride

What is the state of magnesium carbonate in the reaction?

• Solid

• Aqueous

• Liquid

• Gas

What is the charge of the carbonate ion?

• 1-

• 2+

• 1+

• 2-

Which of the following is a strong electrolyte?

• Calcium carbonate

• Barium sulfate

• Magnesium carbonate

• Sodium carbonate

Which ions are not split in the net ionic equation?

• Solid compounds

• Aqueous ions

• Liquid compounds

• Gaseous compounds

What is the purpose of identifying spectator ions?

• To simplify the net ionic equation

• To identify the products

• To determine solubility

• To balance the equation

What happens to spectator ions in the net ionic equation?

• They are converted to solids

• They are removed from the equation

• They are included in the final equation

• They are balanced separately

In a net ionic equation, which ion is typically written first?

• Neutral molecule

• Positive ion

• Complex ion

• Negative ion

Why is it important to write the positive ion first in a net ionic equation?

• To determine solubility

• To balance the equation

• To follow chemical convention

• To identify the reactants