Balancing Net Ionic Equations

The video tutorial explains how to write and balance net ionic equations, using the reaction between strontium chloride and ammonium sulfate as an example. It covers balancing the molecular equation, determining the solubility of compounds, and identifying spectator ions to derive 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 net ionic equation?

• Write the net ionic equation directly

• Determine solubility

• Balance the molecular equation

• Identify spectator ions

How do you balance the ammonium ions in the reaction?

• Add a coefficient of 2 in front of ammonium chloride

• Add a coefficient of 1 in front of ammonium chloride

• Add a coefficient of 2 in front of strontium chloride

• Add a coefficient of 3 in front of ammonium sulfate

Which of the following compounds is generally insoluble?

• Potassium sulfate

• Ammonium chloride

• Strontium sulfate

• Sodium chloride

What happens to strontium sulfate in the reaction?

• It remains as ions in solution

• It forms a precipitate

• It reacts with ammonium ions

• It dissolves completely

What is the purpose of splitting strong electrolytes into ions?

• To identify spectator ions

• To change the reaction rate

• To balance the equation

• To form a precipitate

Which ions are considered spectator ions in this reaction?

• Strontium ions

• Sulfate ions

• Chloride ions

• Ammonium ions

What is the net charge on both sides of the net ionic equation?

• Positive

• Variable

• Negative

• Zero

Why is it important to ensure the net ionic equation is balanced?

• To increase the reaction rate

• To satisfy the law of conservation of mass

• To change the solubility of compounds

• To ensure the reaction occurs

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

• Ensure charge and atom balance

• Split all compounds into ions

• Write the states of each substance

• Identify the precipitate

What is the role of Dr. B in the video?

• To discuss the history of chemistry

• To explain the balanced net ionic equation

• To demonstrate a chemical experiment

• To introduce new chemical compounds