Net Ionic Equations and Spectator Ions

This video tutorial explains how to write a balanced net ionic equation for the reaction between ammonium phosphate and calcium chloride. It begins with balancing the molecular equation and identifying the solubility of compounds. The tutorial then demonstrates how to split strong electrolytes into ions to form the complete ionic equation. Spectator ions are removed to derive the net ionic equation, ensuring charge and atom balance. The video concludes with a review of the balanced net ionic equation.

What is the first step in balancing net ionic equations?

• Identify spectator ions

• Balance the molecular equation

• Write the states of compounds

• Split strong electrolytes into ions

Which of the following compounds is generally insoluble?

• Ammonium phosphate

• Calcium phosphate

• Calcium chloride

• Sodium phosphate

What happens to calcium phosphate when ammonium phosphate reacts with calcium chloride?

• It dissolves in water

• It forms a gas

• It remains unchanged

• It precipitates as a solid

How many ammonium ions are present in the complete ionic equation?

• Nine

• Six

• Twelve

• Three

What is the charge of the phosphate ion in the complete ionic equation?

• 3-

• 2-

• 2+

• 1+

Which ions are considered spectator ions in this reaction?

• Hydrogen and hydroxide ions

• Ammonium and chloride ions

• Sodium and potassium ions

• Calcium and phosphate ions

What is the net charge of the final net ionic equation?

• 0

• 3+

• 1+

• 2-

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

• To ensure the reaction is spontaneous

• To balance the atoms

• To maintain electrical neutrality

• To satisfy the law of conservation of mass

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

• They alter the reaction rate

• They participate in the reaction

• They remain unchanged and do not participate

• They change the state of the reaction

Which ion is typically written first in a net ionic equation?

• Negative ion

• Water molecule

• Positive ion

• Neutral molecule