Magnesium and Copper(II) Sulfate Reactions

This video tutorial explains how to write a balanced net ionic equation for the reaction between magnesium and copper(II) sulfate. It covers the steps of balancing the molecular equation, determining the states of substances, writing the complete ionic equation, and identifying spectator ions to derive the net ionic equation. The tutorial emphasizes the importance of charge and mass conservation in chemical reactions.

What type of reaction occurs between magnesium and copper(II) sulfate?

• Synthesis

• Single displacement

• Double displacement

• Decomposition

What is the role of magnesium in the reaction with copper(II) sulfate?

• It is a spectator ion

• It acts as a catalyst

• It is a reactant that displaces copper

• It is a product

Why is copper(II) sulfate considered a strong electrolyte?

• It does not conduct electricity

• It is insoluble in water

• It is a metal

• It dissociates completely into ions

What is the charge on the sulfate ion in the reaction?

• 1+

• 2+

• 2-

• 1-

What is the charge on the copper ion in copper(II) sulfate?

• 2-

• 1-

• 2+

• 1+

Why is magnesium not split into ions in the complete ionic equation?

• It is a non-metal

• It is a solid metal

• It is a gas

• It is a liquid

What group is magnesium in on the periodic table?

• Group 1

• Group 4

• Group 2

• Group 3

Which ion is considered a spectator ion in this reaction?

• Magnesium ion

• Copper ion

• Sulfate ion

• Hydrogen ion

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

• Cu + SO4^2- → CuSO4

• Mg + CuSO4 → MgSO4 + Cu

• Mg + SO4^2- → MgSO4

• Mg + Cu^2+ → Mg^2+ + Cu

What is conserved in a balanced net ionic equation?

• Both mass and charge

• Only charge

• Only mass

• Neither mass nor charge