Net Ionic Equations and Solubility

This video tutorial explains how to write a balanced net ionic equation for the reaction between magnesium sulfate and potassium carbonate. It covers balancing the molecular equation, determining the solubility and states of substances, splitting strong electrolytes into ions for the complete ionic equation, and identifying spectator ions to derive the net ionic equation. The tutorial concludes with a discussion on charge conservation and the importance of ensuring that the net charge is zero on both sides of the equation.

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

• Determine the solubility of compounds

• Write the complete ionic equation

• Balance the molecular equation

• Identify spectator ions

Which of the following is generally soluble in water?

• Calcium carbonate

• Iron carbonate

• Potassium carbonate

• Magnesium carbonate

Which compound is insoluble in the reaction between magnesium sulfate and potassium carbonate?

• Potassium carbonate

• Magnesium sulfate

• Magnesium carbonate

• Potassium sulfate

What is the charge of the sulfate ion?

• 2+

• 1-

• 2-

• 1+

What is the charge of the magnesium ion in the complete ionic equation?

• 2+

• 2-

• 1-

• 1+

Which ions are not split in the net ionic equation?

• Gases

• Aqueous ions

• Solids

• Liquids

What is the purpose of removing spectator ions?

• To simplify the equation

• To balance the equation

• To determine solubility

• To identify the precipitate

Which of the following is a spectator ion in the reaction?

• Sulfate ion

• Potassium ion

• Carbonate ion

• Magnesium ion

What is the net charge of the final net ionic equation?

• 1+

• 1-

• 2+

• 0

Why is it important to ensure charge balance in the net ionic equation?

• To ensure the reaction occurs

• To maintain the law of conservation of charge

• To identify the limiting reactant

• To predict the products