Net Ionic Equations and Spectator Ions

This video tutorial explains how to write the net ionic equation for the reaction between hydrochloric acid (HCl) and potassium hydroxide (KOH). It covers balancing the molecular equation, identifying the states of substances, and splitting strong electrolytes into ions to form the complete ionic equation. The tutorial then demonstrates how to derive the net ionic equation by removing spectator ions, resulting in the final equation: H⁺ + OH⁻ → H₂O.

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

• Write the complete ionic equation

• Identify spectator ions

• Determine the states of substances

• Balance the molecular equation

Which of the following is a strong electrolyte?

• Water

• Hydrochloric acid

• Sodium chloride

• Potassium chloride

What state is assigned to water in the net ionic equation?

• Liquid

• Aqueous

• Solid

• Gas

How is the charge of hydrogen determined in the complete ionic equation?

• By its molecular weight

• By its color

• By its position in the periodic table

• By its solubility

Which ion is not found on the periodic table?

• Sodium ion

• Hydroxide ion

• Potassium ion

• Chloride ion

What is the purpose of identifying spectator ions?

• To find the molecular weight

• To determine the states of substances

• To simplify the net ionic equation

• To balance the equation

Which ions are crossed out as spectator ions in this reaction?

• H+ and OH-

• K+ and Cl-

• Na+ and Cl-

• H+ and Cl-

What is the net ionic equation for the reaction between HCl and KOH?

• H+ + Cl- → HCl

• HCl + KOH → KCl + H2O

• H+ + OH- → H2O

• K+ + OH- → KOH

What is the role of water in the net ionic equation?

• Spectator ion

• Catalyst

• Product

• Reactant

Who is the presenter of the video?

• Dr. A

• Dr. B

• Dr. C

• Dr. D