Net Ionic Equations and Reactions

The video tutorial explains how to write the net ionic equation for the reaction between calcium hydroxide and carbon dioxide. It begins with balancing the molecular equation and identifying the states of each substance. The tutorial then demonstrates how to split strong electrolytes into ions to form the complete ionic equation. It concludes by identifying that there are no spectator ions in this reaction, making the complete ionic equation the same as the net ionic equation. The video emphasizes the importance of charge conservation and balancing atoms.

What is the purpose of bubbling a gas through calcium hydroxide solution in the experiment?

• To test for the presence of hydrogen gas

• To test for the presence of nitrogen gas

• To test for the presence of carbon dioxide gas

• To test for the presence of oxygen gas

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

• Balance the molecular equation

• Determine the solubility of products

• Identify spectator ions

• Write the complete ionic equation

Why is calcium hydroxide considered a strong base?

• It forms a precipitate in water

• It dissociates completely in solution

• It dissolves completely in water

• It is highly soluble in water

What is the state of calcium carbonate in the reaction?

• Aqueous

• Gas

• Solid

• Liquid

What type of reaction is occurring when calcium carbonate forms?

• Combustion reaction

• Decomposition reaction

• Redox reaction

• Precipitation reaction

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

• 2-

• 1-

• 2+

• 1+

Which substances are not split into ions in the net ionic equation?

• Only gases

• Only solids

• Solids, gases, and liquids

• Aqueous solutions

What is the next step after writing the complete ionic equation?

• Balance the charges

• Identify and cross out spectator ions

• Determine the states of substances

• Write the molecular equation

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

• 1+

• 2+

• 0

• 2-

What ensures that the net ionic equation is balanced?

• Equal number of solids

• Equal number of molecules

• Equal number of atoms and charges

• Equal number of ions