Net Ionic Equations and Weak Acids

The video tutorial explains how to write net ionic equations, focusing on the reaction between aluminum hydroxide and carbonic acid. It covers balancing molecular equations, determining the states of substances using solubility rules, and the treatment of weak acids in net ionic equations. The tutorial emphasizes that weak acids like carbonic acid are not split into ions in net ionic equations, resulting in the complete ionic equation being the same as the net ionic equation.

What is the first step in analyzing net ionic equations?

• Balance the molecular equation

• Identify the spectator ions

• Write the complete ionic equation

• Determine the reaction type

Which of the following is a characteristic of carbonic acid in the reaction?

• It is a strong acid

• It is a solid

• It is insoluble

• It is a weak acid

According to solubility rules, which group of hydroxides is generally soluble?

• Lanthanide hydroxides

• Group 2 hydroxides

• Group 1 hydroxides

• Transition metal hydroxides

Why is aluminum carbonate considered a solid in net ionic equations?

• It is a gas

• It is a liquid

• It is highly soluble

• It is slightly soluble

What is the state of water in net ionic equations?

• Aqueous

• Gas

• Liquid

• Solid

Why are weak acids not split in net ionic equations?

• They are insoluble

• They do not ionize completely

• They are solids

• They are gases

What is the net ionic equation for the reaction between aluminum hydroxide and carbonic acid?

• Al(OH)3 + H2CO3 → Al3+ + CO3^2- + H2O

• Al(OH)3 + H2CO3 → Al2(CO3)3 + H2O

• Al(OH)3 + H2CO3 → Al2O3 + CO2 + H2O

• Al(OH)3 + H2CO3 → Al(OH)3 + H2CO3

What is the role of spectator ions in net ionic equations?

• They are removed from the equation

• They form precipitates

• They change the state of matter

• They participate in the reaction

Which of the following is true about the complete ionic equation in this reaction?

• It is different from the net ionic equation

• It includes all ions present

• It is the same as the net ionic equation

• It excludes weak acids

What is the significance of weak acids in net ionic equations?

• They form strong bases

• They are always split into ions

• They are always solids

• They remain undissociated