Net Ionic Equations and Reactions

This video tutorial guides viewers through writing a balanced net ionic equation for the reaction between copper(II) sulfate and sodium sulfide. It begins with balancing the molecular equation and determining the states of each substance. The tutorial then explains how to split strong electrolytes into ions to form the complete ionic equation. Spectator ions are identified and removed to derive the net ionic equation. The video concludes by emphasizing the conservation of charge and mass in the reaction.

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

• Determine the solubility of compounds

• Balance the molecular equation

• Write the complete ionic equation

• Identify spectator ions

Which compound is insoluble in the reaction between copper(II) sulfate and sodium sulfide?

• Copper(II) sulfate

• Sodium sulfate

• Copper(II) sulfide

• Sodium sulfide

What is the state of sodium compounds in the reaction?

• Liquid

• Solid

• Aqueous

• Gas

What is the charge on the copper ion in the complete ionic equation?

• 1-

• 2-

• 2+

• 1+

Which ions are considered spectator ions in this reaction?

• Copper ions

• Sulfate ions

• Sodium ions

• Sulfide ions

What is the net ionic equation for the reaction between copper(II) sulfate and sodium sulfide?

• Cu^2+ + SO4^2- -> CuSO4

• Na+ + Cl- -> NaCl

• Cu^2+ + S^2- -> CuS

• 2Na+ + SO4^2- -> Na2SO4

Why are spectator ions not included in the net ionic equation?

• They change state during the reaction

• They form a precipitate

• They are gases

• They do not participate in the reaction

How is charge conservation demonstrated in the net ionic equation?

• By having equal masses on both sides

• By having equal volumes on both sides

• By having equal charges on both sides

• By having equal numbers of atoms on both sides

What is conserved in a balanced net ionic equation?

• Both mass and charge

• Only mass

• Only charge

• Neither mass nor charge

What is the final product formed in the reaction between copper(II) sulfate and sodium sulfide?

• Sodium sulfate

• Sodium sulfide

• Copper(II) sulfide

• Copper(II) sulfate