Final answer:
The substances that will dissolve in water to form an electrolytic solution are sodium chloride, sodium carbonate, potassium phosphate, and potassium iodide, as they are all ionic.
Step-by-step explanation:
The substances that will dissolve in water to form an electrolytic solution are sodium chloride (NaCl), sodium carbonate (Na2CO3), potassium phosphate (K3PO4), and potassium iodide (KI).
These compounds are all ionic and will dissociate into ions when they dissolve in water, thus making the solution capable of conducting electricity.
Glucose (C6H12O6) and ethanol (C2H5OH) will also dissolve in water but will not form an electrolytic solution because these are covalent compounds and will dissolve as molecules, not ions.
Therefore, glucose and ethanol solutions do not conduct electricity well and are classified as nonelectrolytes.Glucose and ethanol dissolve in water but form nonelectrolytic solutions.