Net Ionic Equations and Reactions

The video tutorial explains how to write the balanced net ionic equation for the reaction between iron(III) chloride (FeCl3) and magnesium (Mg). It begins by balancing the molecular equation, then determines the states of each substance. The tutorial proceeds to write the complete ionic equation, identifying and removing spectator ions, and concludes with the balanced net ionic equation, ensuring both charge and atom balance.

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

• Identify spectator ions

• Balance the molecular equation

• Write the complete ionic equation

• Determine the states of substances

Why do we multiply the number of chlorines by 2 in the balancing process?

• To make the equation more complex

• To ensure an even number of chlorine atoms

• To increase the number of magnesium atoms

• To balance the charges

What type of reaction occurs between iron(III) chloride and magnesium?

• Decomposition

• Double displacement

• Synthesis

• Single displacement

Which of the following is generally true about chloride compounds?

• They are very soluble

• They are liquids

• They are gases

• They are insoluble

What is the purpose of splitting strong electrolytes into ions?

• To balance the charges

• To change the reaction type

• To simplify the equation

• To identify spectator ions

What are spectator ions?

• Ions that participate in the reaction

• Ions that are present in the reactants only

• Ions that are present in the products only

• Ions that do not change during the reaction

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

• By adjusting the coefficients randomly

• By checking the number of atoms only

• By ensuring charges and atoms are balanced

• By balancing the charges only

What happens to the charges in a balanced net ionic equation?

• They are halved

• They are conserved

• They are doubled

• They are ignored

In the reaction between FeCl3 and Mg, what happens to the iron?

• It forms a compound with magnesium

• It is displaced by magnesium

• It reacts with chlorine

• It remains unchanged

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

• Crossing out spectator ions

• Writing the complete ionic equation

• Balancing the molecular equation

• Checking the solubility of compounds