Net Ionic Equations and Charge Balance

The video tutorial explains how to write a balanced net ionic equation for the reaction between sodium hydroxide and iron(II) chloride. It begins with balancing the molecular equation, then determines the states of the substances involved. The tutorial proceeds to write the complete ionic equation by splitting strong electrolytes into ions. Finally, it derives the net ionic equation by removing spectator ions, ensuring charge and mass are balanced.

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

• Identify the spectator ions

• Balance the molecular equation

• Determine the solubility of compounds

• Write the complete ionic equation

Why is sodium hydroxide considered soluble?

• It is a weak base

• It forms a precipitate

• It is a transition metal

• It is a strong base

Which compound forms a precipitate in the reaction?

• Iron(II) hydroxide

• Sodium chloride

• Iron(II) chloride

• Sodium hydroxide

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

• 2-

• 1-

• 1+

• 2+

How do you determine the charge of iron in iron(II) chloride?

• By its solubility

• By its color

• By the charge of the chloride ions

• By its position in the periodic table

What is the role of spectator ions in a reaction?

• They form a precipitate

• They remain unchanged and are not included in the net ionic equation

• They change the color of the solution

• They participate in the reaction

Which ions are considered spectator ions in this reaction?

• Only sodium ions

• Iron and hydroxide ions

• Only chloride ions

• Sodium and chloride ions

What is the final product in the net ionic equation?

• Sodium chloride

• Sodium hydroxide

• Iron(II) chloride

• Iron(II) hydroxide

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

• To increase the reaction rate

• To make the equation colorful

• To ensure the reaction is spontaneous

• To satisfy the law of conservation of charge

What does it mean when mass is conserved in a chemical equation?

• The equation is balanced

• The reaction is endothermic

• The products are heavier than the reactants

• The reaction is exothermic