Net Ionic Equations and Solubility

The video tutorial explains how to balance the net ionic equation for H2SO4 and CaCl2. It begins by balancing the molecular equation, then writing the states of each substance and determining solubility. The tutorial proceeds to split strong electrolytes into ions to form the complete ionic equation. Spectator ions are identified and removed to derive the net ionic equation. Finally, the tutorial ensures that charges and atoms are balanced in the equation, concluding with a summary of the process.

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

• Identify spectator ions

• Balance the molecular equation

• Determine solubility

• Write the net ionic equation

How do you balance the molecular equation for H2SO4 and CaCl2?

• Add a coefficient of 2 to H2SO4

• Add a coefficient of 2 to CaCl2

• Add a coefficient of 3 to CaCl2

• Add a coefficient of 3 to H2SO4

Which of the following is considered slightly soluble and forms a precipitate?

• Hydrochloric acid

• Calcium chloride

• Sulfuric acid

• Calcium sulfate

How do you determine if a compound is soluble or insoluble?

• By checking a solubility table

• By measuring the pH

• By observing the color change

• By calculating the molarity

What happens to slightly soluble compounds in net ionic equations?

• They are considered insoluble

• They are dissolved completely

• They are considered soluble

• They are ignored

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

• They change the charge balance

• They form the precipitate

• They are removed from the net ionic equation

• They participate in the reaction

Which ions are considered spectator ions in the reaction between H2SO4 and CaCl2?

• Calcium ions

• Sulfate ions

• Chloride ions

• Hydrogen ions

What is the net ionic equation for the reaction between H2SO4 and CaCl2?

• Ca^2+ + SO4^2- → CaSO4

• 2H+ + 2Cl- → H2Cl2

• Ca^2+ + 2Cl- → CaCl2

• H2SO4 + CaCl2 → CaSO4 + 2HCl

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

• To maintain the law of conservation of mass

• To ensure the reaction is balanced

• To maintain the law of conservation of charge

• To ensure the reaction is spontaneous

What is the net charge of the products in the balanced net ionic equation for H2SO4 and CaCl2?

• 1+

• 0

• 2-

• 2+