Net Ionic Equations and Spectator Ions

The video tutorial explains how to write a balanced net ionic equation for the reaction between HNO3 and PbCO3. It begins with balancing the molecular equation, then assigns states to each substance using solubility rules. The tutorial proceeds to split strong electrolytes into ions for the complete ionic equation, identifies and removes spectator ions, and finalizes the net ionic equation, ensuring charge and atom balance.

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

• Identify spectator ions

• Balance the molecular equation

• Determine the states of substances

• Split strong electrolytes into ions

Why is nitric acid considered aqueous in the reaction?

• It is a weak acid

• It is a gas

• It forms a precipitate

• It is a strong acid that dissociates in water

What is the state of lead(II) carbonate in the reaction?

• Liquid

• Solid

• Gas

• Aqueous

Which ions are split in the complete ionic equation?

• All ions

• Only solid ions

• Only aqueous ions

• Only gas ions

What is the charge of the lead ion in the products?

• 2+

• 0

• 1+

• 3+

What are spectator ions?

• Ions that are gases

• Ions that form a precipitate

• Ions that do not change during the reaction

• Ions that participate in the reaction

Which ions are removed to form the net ionic equation?

• All ions

• Only gas ions

• Spectator ions

• Only solid ions

What ensures the net ionic equation is correct?

• Charge and atom balance

• Presence of spectator ions

• Formation of a gas

• Formation of a solid

What is the net ionic equation for the reaction?

• 2H+ + 2NO3- -> Pb2+ + CO3 2-

• HNO3 + PbCO3 -> Pb(NO3)2 + CO2 + H2O

• 2H+ + PbCO3 -> Pb2+ + CO2 + H2O

• H+ + NO3- -> Pb2+ + CO3 2-

What is conserved in a balanced net ionic equation?

• Neither mass nor charge

• Only charge

• Only mass

• Both mass and charge