Net Ionic Equations and Spectator Ions

The video tutorial explains how to balance a net ionic equation for magnesium nitrate and potassium phosphate. It begins with balancing the molecular equation, followed by determining the states of substances using solubility rules. The tutorial then forms the complete ionic equation and identifies spectator ions to derive the net ionic equation. Finally, it verifies the charge balance and atom count to ensure the equation is correct.

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

• Identify spectator ions

• Split strong electrolytes into ions

• Balance the molecular equation

• Determine the states of substances

How many magnesium atoms are needed to balance the molecular equation for magnesium nitrate and potassium phosphate?

• Four

• Three

• Two

• One

According to solubility rules, which type of compounds are generally soluble?

• Phosphate compounds

• Nitrate compounds

• Magnesium compounds

• All compounds

What happens to magnesium phosphate in the reaction?

• It forms a gas

• It reacts with potassium

• It dissolves in water

• It remains as a solid precipitate

What is the purpose of splitting strong electrolytes into ions?

• To balance the equation

• To identify spectator ions

• To create a precipitate

• To determine solubility

Which ions are considered spectator ions in this reaction?

• Hydrogen ions

• Nitrate ions

• Phosphate ions

• Magnesium ions

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

• Negative

• Variable

• Positive

• Zero

How do you ensure that the net ionic equation is balanced?

• By counting atoms only

• By balancing charges only

• By balancing both atoms and charges

• By using coefficients

What is the role of potassium ions in the reaction?

• They form a precipitate

• They are spectator ions

• They react with magnesium

• They change the pH

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

• Determining solubility

• Balancing the molecular equation

• Identifying spectator ions

• Ensuring charge balance