Net Ionic Equations and Spectator Ions

This video tutorial explains how to balance net ionic equations, using the reaction between barium nitrate and potassium carbonate as an example. It covers balancing the molecular equation, determining the states of substances, and writing complete and net ionic equations. The tutorial emphasizes the importance of conserving charge and balancing atoms in chemical equations.

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

• Split the strong electrolytes into ions

• Determine the states of substances

• Balance the molecular equation

• Identify the spectator ions

How do you balance the potassium atoms in the molecular equation?

• Add a coefficient of 2 in front of barium carbonate

• Add a coefficient of 2 in front of potassium nitrate

• Add a coefficient of 2 in front of potassium carbonate

• Add a coefficient of 2 in front of barium nitrate

Which of the following compounds is generally insoluble unless paired with a group one element?

• Potassium compounds

• Barium compounds

• Carbonates

• Nitrates

What is the state of barium carbonate in the reaction?

• Aqueous

• Solid

• Gas

• Liquid

What do you do with spectator ions in the complete ionic equation?

• Balance them separately

• Include them in the net ionic equation

• Cross them out

• Convert them to solids

Which ions are considered spectator ions in this reaction?

• Barium ions

• Potassium ions

• Carbonate ions

• Nitrate ions

What is the net charge on both sides of the net ionic equation?

• Positive

• Negative

• Variable

• Zero

Why is it important to ensure that atoms are balanced in the net ionic equation?

• To ensure the reaction is spontaneous

• To comply with the law of conservation of mass

• To ensure the reaction is endothermic

• To make the equation easier to read

What is the final product formed as a precipitate in this reaction?

• Potassium nitrate

• Barium carbonate

• Barium nitrate

• Potassium carbonate

What is the role of Dr. B in the video?

• He is a student

• He is the narrator and instructor

• He is a guest speaker

• He is a lab assistant