Zinc Reactions and Ionic Equations

This video tutorial explains how to write a balanced net ionic equation for the reaction between zinc metal and tin(II) nitrate. It covers the steps of balancing the molecular equation, assigning states to substances, forming the complete ionic equation, and identifying spectator ions to derive the net ionic equation. The tutorial emphasizes the importance of charge and atom balance in the final equation.

What type of reaction occurs between zinc and tin(II) nitrate?

• Decomposition

• Synthesis

• Double displacement

• Single displacement

Which state is assigned to zinc metal in the reaction?

• Gas

• Aqueous

• Liquid

• Solid

According to solubility rules, what is the state of nitrates in water?

• Liquid

• Solid

• Gas

• Aqueous

Why can't zinc be 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 charge is assigned to the tin ion in the reaction?

• 4+

• 3+

• 2+

• 1+

What are spectator ions in a chemical reaction?

• Ions that participate in the reaction

• Ions that change state

• Ions that do not participate in the reaction

• Ions that form a precipitate

Which ions are identified as spectator ions in this reaction?

• Zinc ions

• Hydrogen ions

• Tin ions

• Nitrate ions

What is the purpose of writing a net ionic equation?

• To show only the ions that participate in the reaction

• To identify the products

• To balance the equation

• To show all compounds in the reaction

How is charge conservation demonstrated in the net ionic equation?

• By having different charges on both sides

• By having the same charge on both sides

• By having no charge on either side

• By having more charge on the reactant side

What is ensured by balancing the atoms in the net ionic equation?

• The law of conservation of mass is followed

• The reaction is spontaneous

• The reaction is exothermic

• The reaction is endothermic