Net Ionic Equations and Solubility

The video tutorial explains how to write a balanced net ionic equation for the reaction between barium chloride (BaCl2) and lithium sulfate (Li2SO4). It begins with balancing the molecular equation, followed by determining the states of each substance. The tutorial then demonstrates how to write the complete ionic equation and identify spectator ions to derive the net ionic equation. Finally, it emphasizes the importance of conserving charge and balancing atoms in the equation.

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

• Determine the solubility of compounds

• Identify spectator ions

• Write the net ionic equation directly

• Balance the molecular equation

What is the balanced molecular equation for the reaction between barium chloride and lithium sulfate?

• BaCl2 + Li2SO4 → BaSO4 + 2LiCl

• BaCl2 + Li2SO4 → BaSO4 + LiCl

• 2BaCl2 + Li2SO4 → BaSO4 + 2LiCl

• BaCl2 + 2Li2SO4 → BaSO4 + 2LiCl

Why is barium sulfate considered an exception in solubility rules?

• It is a strong acid

• It is highly soluble

• It is insoluble

• It forms a gas

What happens to strong electrolytes in a complete ionic equation?

• They remain as compounds

• They form a precipitate

• They split into ions

• They evaporate

Which of the following is a strong electrolyte?

• Carbon dioxide

• Water

• Lithium chloride

• Barium sulfate

Which compound remains undissociated in the complete ionic equation?

• Lithium chloride

• Barium sulfate

• Potassium nitrate

• Sodium chloride

Which ions are not included in the net ionic equation?

• All ions

• Spectator ions

• Precipitate ions

• Only cations

What is the role of spectator ions in a chemical reaction?

• They participate in the reaction

• They change the state of the reaction

• They do not participate in the reaction

• They form the precipitate

What must be conserved in a net ionic equation?

• Neither mass nor charge

• Both mass and charge

• Charge only

• Mass only

What is the net charge of the products in the net ionic equation?

• Variable

• Zero

• Negative

• Positive