Net Ionic Equations and Reactions

The video tutorial explains how to write a balanced net ionic equation for the reaction between potassium iodide (KI) and sodium carbonate (Na2CO3). It begins by balancing the molecular equation and assigning states to each compound based on solubility rules. The tutorial demonstrates that all compounds are aqueous, leading to no net ionic equation as no reaction occurs. The video concludes by confirming that no precipitate forms, and thus, no reaction takes place.

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

• Determine the solubility of the compounds.

• Write the net ionic equation directly.

• Balance the molecular equation.

• Identify the spectator ions.

How do you balance the molecular equation for KI and Na2CO3?

• By adding water molecules.

• By changing the subscripts of the compounds.

• By removing spectator ions.

• By adjusting the coefficients of the reactants and products.

What does 'AQ' stand for when writing the states of compounds?

• Aqueous Solution

• Aqueous State

• Aqueous Phase

• Aqueous

Why are potassium and sodium compounds labeled as 'AQ'?

• They are very soluble in water.

• They are insoluble in water.

• They are gases at room temperature.

• They form precipitates.

What happens when all ions in a reaction are spectator ions?

• A new compound is formed.

• A precipitate is formed.

• No reaction occurs.

• The solution changes color.

What is the result of mixing KI and Na2CO3 in water?

• The ions remain in solution with no reaction.

• The solution becomes acidic.

• A gas is released.

• A solid precipitate forms.

What is the conclusion about the net ionic equation for KI and Na2CO3?

• A complex reaction occurs.

• There is no net ionic equation as no reaction takes place.

• A gas is produced.

• A new element is formed.