Net Ionic Equations and Spectator Ions

The video tutorial explains how to balance a net ionic equation for ammonium sulfide and cobalt(III) nitrate. It begins with balancing the molecular equation by adjusting coefficients to ensure equal numbers of each type of atom on both sides. The tutorial then describes how to write the states of each compound, noting solubility rules, and forms the complete ionic equation by splitting aqueous compounds into ions. Spectator ions, which appear on both sides of the equation, are identified and removed to derive the net ionic equation. The tutorial concludes by ensuring charge conservation and atom balance in the final equation.

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

• Determine the states of compounds

• Identify spectator ions

• Balance the molecular equation

• Split compounds into ions

How many sulfur atoms are needed on each side of the equation to balance ammonium sulfide?

• Four

• Three

• Two

• One

What is the state of compounds containing the ammonium ion?

• Liquid

• Solid

• Aqueous

• Gas

Which type of compounds generally form precipitates?

• Chlorides

• Nitrates

• Sulfides

• Ammonium compounds

What do you call ions that appear on both sides of the complete ionic equation?

• Reactant ions

• Product ions

• Spectator ions

• Neutral ions

What is the purpose of crossing out spectator ions?

• To determine solubility

• To identify the precipitate

• To balance the charge

• To simplify the equation

What is the net charge of a balanced net ionic equation?

• Variable

• Negative

• Positive

• Zero

Why is it important to ensure the net charge is zero in a net ionic equation?

• To identify spectator ions

• To confirm the equation is balanced

• To find the precipitate

• To determine solubility

What is the result of balancing both the charge and the atoms in a net ionic equation?

• A complete ionic equation

• A balanced net ionic equation

• A balanced molecular equation

• An unbalanced equation

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

• Identifying spectator ions

• Ensuring charge and atom balance

• Balancing the molecular equation

• Writing the states of compounds