Lithium Reaction and Ionic Equations

This video tutorial guides viewers through writing a balanced net ionic equation for the reaction between lithium and water. It begins with balancing the molecular equation, followed by determining the states of each substance involved. The tutorial then explains how to split strong electrolytes into ions and concludes with the complete and net ionic equations, highlighting the absence of spectator ions.

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

• Identify spectator ions

• Balance the molecular equation

• Assign states to substances

• Write the complete ionic equation

How many hydrogens are on the product side before balancing the equation?

• Three

• One

• Four

• Two

What state is lithium in during the reaction?

• Aqueous

• Gas

• Liquid

• Solid

Which substance is considered a strong electrolyte in this reaction?

• Li

• H2O

• LiOH

• H2

What is the charge of the lithium ion in the reaction?

• +1

• -1

• +2

• 0

What is the physical state of hydrogen in the reaction?

• Gas

• Liquid

• Solid

• Aqueous

Why can't lithium be crossed out as a spectator ion?

• It remains unchanged

• It is a gas on both sides

• It changes from solid to ion

• It is a solid on both sides

What is the net ionic equation for the reaction?

• 2 Li + H2O -> LiOH + H2

• Li + H2O -> Li+ + OH- + H2

• Li + H2O -> LiOH + H2

• 2 Li + 2 H2O -> 2 Li+ + 2 OH- + H2

What is the role of water in the reaction?

• It is a catalyst

• It is a product

• It is a reactant

• It acts as a solvent

What is the significance of the net ionic equation?

• It balances the molecular equation

• It focuses on the ions that participate in the reaction

• It highlights the spectator ions

• It shows all reactants and products