Net Ionic Equations and Reactions

This video tutorial guides viewers through the process of writing a balanced net ionic equation for the reaction between zinc and hydrobromic acid. It begins with balancing the molecular equation, assigning states to each substance, and then formulating the complete ionic equation. The tutorial explains how to identify and remove spectator ions to arrive at the net ionic equation, ensuring charge conservation and atom balance. The video concludes with a review of the final balanced net ionic equation.

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

• Split strong electrolytes into ions

• Determine the states of substances

• Balance the molecular equation

• Identify spectator ions

What state is assigned to zinc in the reaction with hydrobromic acid?

• Aqueous

• Liquid

• Solid

• Gas

Why is hydrobromic acid considered aqueous in the reaction?

• It is a weak acid

• It dissociates into ions

• It is a solid at room temperature

• It forms a precipitate

What charge does the hydrogen ion have in the complete ionic equation?

• 2-

• 2+

• 1+

• 1-

What is the charge of the zinc ion in the complete ionic equation?

• 1+

• 2+

• 1-

• 2-

Which ion is considered a spectator ion in this reaction?

• Hydrogen gas

• Bromide ion

• Hydrogen ion

• Zinc ion

What happens to spectator ions in the net ionic equation?

• They change their charge

• They form a new compound

• They are removed from both sides

• They are included in the final equation

What is conserved in a balanced net ionic equation?

• Both mass and charge

• Only charge

• Only mass

• Neither mass nor charge

How many hydrogen atoms are present on each side of the balanced net ionic equation?

• One

• Two

• Four

• Three

What is the final product formed in the reaction between zinc and hydrobromic acid?

• Bromine gas

• Zinc bromide

• Hydrogen gas

• Zinc oxide