Balancing Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between potassium sulfide and calcium nitrate. It covers balancing the molecular equation, determining the states of substances, splitting strong electrolytes into ions, identifying and removing spectator ions, and finalizing the net ionic equation. The tutorial emphasizes the importance of charge and atom balance in the final equation.

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

• Identify spectator ions

• Balance the molecular equation

• Determine the solubility of compounds

• Split strong electrolytes into ions

How do you balance the molecular equation for the reaction between potassium sulfide and calcium nitrate?

• Add a coefficient of three in front of calcium nitrate

• Add a coefficient of three in front of potassium sulfide

• Add a coefficient of two in front of potassium nitrate

• Add a coefficient of two in front of calcium nitrate

Which of the following compounds is generally insoluble?

• Potassium nitrate

• Calcium nitrate

• Calcium sulfide

• Potassium sulfide

What is the state of calcium sulfide in the reaction?

• Aqueous

• Gas

• Liquid

• Solid

When creating the complete ionic equation, which type of compounds are split into ions?

• Strong electrolytes

• Liquids

• Solids

• Gases

Why are solids not split into ions in the complete ionic equation?

• They do not dissolve in water

• They are already balanced

• They are spectator ions

• They are not reactive

What are spectator ions?

• Ions that are insoluble

• Ions that do not change during the reaction

• Ions that participate in the reaction

• Ions that form a precipitate

Which ions are considered spectator ions in the reaction between potassium sulfide and calcium nitrate?

• Potassium and nitrate ions

• Calcium and sulfide ions

• Sulfide and nitrate ions

• Calcium and potassium ions

What is the net charge of the net ionic equation for the reaction?

• 1+

• 0

• 2-

• 2+

What ensures that the net ionic equation is balanced?

• Equal number of atoms on both sides

• Equal number of ions on both sides

• Equal number of molecules on both sides

• Equal number of electrons on both sides