Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between cesium hydroxide and hydrobromic acid. It begins with balancing the molecular equation, assigning states to each substance, and splitting strong electrolytes into ions to form the complete ionic equation. Spectator ions are identified and removed, leaving the net ionic equation. The tutorial concludes by verifying charge and atom balance in the final equation.

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

• Split strong electrolytes into ions

• Identify spectator ions

• Determine the states of substances

• Balance the molecular equation

Which of the following is a strong base?

• Water

• Cesium bromide

• Cesium hydroxide

• Hydrobromic acid

What is the state of cesium bromide in the reaction?

• Solid

• Liquid

• Gas

• Aqueous

What do you do after determining the states of substances in a reaction?

• Balance the molecular equation

• Split strong electrolytes into ions

• Identify spectator ions

• Write the net ionic equation

What is the purpose of identifying spectator ions?

• To simplify the complete ionic equation

• To finalize the net ionic equation

• To balance the molecular equation

• To determine the states of substances

Which ion is a spectator ion in the reaction between cesium hydroxide and hydrobromic acid?

• Hydroxide ion

• Cesium ion

• Hydrogen ion

• Bromide ion

What is the net charge of the products in the net ionic equation?

• Depends on the reaction

• Zero

• Negative

• Positive

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

• To determine the states of substances

• To balance the molecular equation

• To identify spectator ions

• To ensure charge conservation

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

• Ensure charge and atom balance

• Determine the states of substances

• Identify spectator ions

• Balance the molecular equation

What is the net ionic equation for the reaction between cesium hydroxide and hydrobromic acid?

• H2O → H+ + OH-

• H+ + OH- → H2O

• Cs+ + Br- → CsBr

• HBr + CsOH → CsBr + H2O