Net Ionic Equations and Reactions

The video tutorial explains how to balance the net ionic equation for the reaction between sodium hydroxide (NaOH) and nickel(II) chloride (NiCl2). It begins by balancing the molecular equation, then discusses the states of each substance, highlighting solubility and electrolyte properties. The tutorial proceeds to form the complete ionic equation by splitting strong electrolytes into ions and identifying spectator ions. Finally, it derives the net ionic equation, ensuring charge conservation and atom balance, and concludes with a brief summary of the process.

What is the first step in balancing the net ionic equation for NaOH and NiCl2?

• Identify spectator ions

• Balance the molecular equation

• Write the net ionic equation

• Determine the solubility of compounds

Which of the following compounds is generally insoluble in water?

• Sodium chloride

• Nickel(II) hydroxide

• Potassium hydroxide

• Sodium hydroxide

Why is it important to write the states of each substance in the molecular equation?

• To determine the reaction rate

• To identify the precipitate

• To balance the equation

• To calculate the molar mass

Which of the following is a strong electrolyte?

• Sodium hydroxide

• Nickel(II) chloride

• Nickel(II) hydroxide

• Water

What is the charge of the nickel ion in nickel(II) chloride?

• 2-

• 1-

• 2+

• 1+

Which ions are considered spectator ions in the reaction between NaOH and NiCl2?

• Sodium and chloride ions

• Nickel and chloride ions

• Nickel and hydroxide ions

• Sodium and hydroxide ions

What is the purpose of removing spectator ions in the net ionic equation?

• To simplify the equation

• To determine solubility

• To balance the charges

• To identify the precipitate

What is the role of hydroxide ions in the reaction between NaOH and NiCl2?

• They act as spectator ions

• They balance the equation

• They dissolve in water

• They form a precipitate with nickel ions

How is charge conservation verified in the net ionic equation?

• By checking solubility

• By counting the atoms

• By ensuring the charges on both sides are equal

• By identifying spectator ions

What is the net ionic equation for the reaction between NaOH and NiCl2?

• 2Na+ + 2OH- + Ni2+ + 2Cl- → 2Na+ + 2Cl- + Ni(OH)2

• 2Na+ + 2Cl- → 2NaCl

• NaOH + NiCl2 → NaCl + Ni(OH)2

• 2OH- + Ni2+ → Ni(OH)2