Ionic Reactions and Hydroxide Chemistry

The video tutorial explains how to write and balance the net ionic equation for the reaction between sodium hydroxide (NaOH) and nickel(II) nitrate (Ni(NO3)2). It begins with balancing the molecular equation, then discusses the states of the substances involved. The tutorial proceeds to break down the complete ionic equation and derives the net ionic equation by removing spectator ions. Finally, it emphasizes the importance of conserving charge and mass in the net ionic equation.

What is the first step in balancing the molecular equation for NaOH and Ni(NO3)2?

• Balance the sodium atoms.

• Balance the nitrate ions.

• Balance the hydroxide ions.

• Balance the nickel atoms.

Which of the following is a strong base that dissociates into ions?

• Nickel(II) nitrate

• Sodium nitrate

• Sodium hydroxide

• Nickel(II) hydroxide

What is the solubility state of nickel(II) hydroxide in the reaction?

• Liquid

• Aqueous

• Gas

• Solid

What charge does the hydroxide ion carry?

• 2-

• 1+

• 2+

• 1-

How do you determine the ionic charge of nickel in nickel(II) nitrate?

• By its position in the periodic table

• By the charge of the nitrate ions

• By the color of the compound

• By the solubility of the compound

Which ions are considered spectator ions in this reaction?

• Sodium ions

• Hydroxide ions

• Nitrate ions

• Nickel ions

What is the purpose of removing spectator ions from the complete ionic equation?

• To balance the equation

• To change the reaction

• To increase the reaction rate

• To simplify the equation

What is conserved in the net ionic equation?

• Both mass and charge

• Neither mass nor charge

• Only charge

• Only mass

Why might the positive ion be written first in the net ionic equation?

• It affects the solubility

• It changes the reaction

• It is a convention for clarity

• It is required by law

What is the final product of the reaction between NaOH and Ni(NO3)2?

• Sodium nitrate

• Nickel(II) hydroxide

• Nickel(II) nitrate

• Sodium hydroxide