Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between nitric acid (HNO3) and calcium hydroxide (Ca(OH)2). It begins with balancing the molecular equation, determining the states of each substance, and then splitting the soluble compounds into their ions to form the complete ionic equation. The tutorial proceeds to derive the net ionic equation by canceling out ions that appear on both sides and concludes by simplifying the equation to its simplest form.

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

• Determine the solubility of compounds

• Balance the molecular equation

• Identify the spectator ions

• Write the net ionic equation directly

Which of the following is a strong acid that dissociates completely in water?

• Calcium hydroxide

• Nitric acid

• Sodium chloride

• Ammonia

What is the state of calcium nitrate in the reaction?

• Aqueous

• Gas

• Liquid

• Solid

How do you determine the charge of the nitrate ion?

• By looking it up on the periodic table

• By memorizing it as a polyatomic ion

• By calculating it from the molecular weight

• By observing its color in solution

Which ion is not split into its components in the ionic equation?

• Hydrogen ion

• Water

• Calcium ion

• Nitrate ion

What is the purpose of identifying spectator ions in a reaction?

• To determine the reaction rate

• To find the limiting reagent

• To simplify the net ionic equation

• To balance the equation

Which ions are considered spectator ions in this reaction?

• Calcium and nitrate ions

• Nitrate and hydroxide ions

• Calcium and hydrogen ions

• Hydrogen and hydroxide ions

What is the final step in deriving the net ionic equation?

• Balancing the charges

• Identifying the products

• Simplifying to the lowest common denominator

• Writing the molecular equation

Why is it unnecessary to write '1' in the net ionic equation?

• It is not a valid coefficient

• It is assumed to be there

• It is not a whole number

• It complicates the equation

What is the net ionic equation for the reaction between nitric acid and calcium hydroxide?

• H+ + OH- → H2O

• 2H+ + 2OH- → 2H2O

• Ca2+ + 2NO3- → Ca(NO3)2

• HNO3 + Ca(OH)2 → Ca(NO3)2 + H2O