Final answer:
The student's question involves writing the molecular, total ionic, and net ionic equations for specific chemical reactions. An example is given for the reaction between calcium chloride and lead(II) nitrate, showcasing the transformation from the full molecular equation to the net ionic equation by eliminating spectator ions.
Step-by-step explanation:
The student has asked for the molecular, total ionic, and net ionic equations for the reaction of Ca(OH)₂(aq) and HC₂H₃O₂(aq), and the reaction of H₃PO₄(aq) and CaCl₂(aq). This involves double displacement reactions, where the cations and anions switch partners, often resulting in the formation of a precipitate, gas, or water. While the specific reactions weren't fully balanced or provided in their entirety, I will provide an example from the reference material, forming a balanced net ionic equation for the reaction between CaCl₂(aq) and Pb(NO₃)₂(aq):
In these reactions, the net ionic equation represents the essence of the chemical change by omitting spectator ions.