Net Ionic Equations and Spectator Ions

This video tutorial explains how to write the net ionic equation for the reaction between calcium nitrate and sodium hydroxide. It begins with balancing the molecular equation, then assigns states to each substance based on solubility rules. The tutorial proceeds to split soluble compounds into their ions to form the complete ionic equation. Finally, it identifies and removes spectator ions to derive the net ionic equation, emphasizing the chemical changes occurring in the reaction.

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

• Identify spectator ions

• Determine the solubility of compounds

• Balance the molecular equation

• Write the complete ionic equation

What state is assigned to calcium nitrate in the reaction?

• Gas

• Liquid

• Aqueous

• Solid

Why is calcium hydroxide considered a solid in the reaction?

• It is highly soluble

• It forms a precipitate

• It is a gas at room temperature

• It dissolves completely in water

What is the purpose of splitting soluble compounds into ions?

• To identify spectator ions

• To determine the reaction rate

• To balance the equation

• To write the complete ionic equation

Which ion is not found on the periodic table and requires a polyatomic ions table?

• Hydroxide

• Nitrate

• Sodium

• Calcium

What charge does the calcium ion have?

• 2+

• 2-

• 1-

• 1+

What is the role of spectator ions in a chemical reaction?

• They remain unchanged

• They change the reaction rate

• They form new compounds

• They participate in the reaction

Which ions are considered spectator ions in this reaction?

• Sodium and nitrate

• Sodium and hydroxide

• Calcium and hydroxide

• Calcium and nitrate

What is the final product formed when calcium bonds with hydroxide?

• Calcium nitrate

• Sodium nitrate

• Calcium hydroxide

• Sodium hydroxide

Why do we write net ionic equations?

• To show all compounds involved

• To highlight the changes in the reaction

• To list all spectator ions

• To balance the molecular equation