Question $1$: Identify the following compounds as nonelectrolytes, weak electrolytes, or strong electrolytes:

ethanol $(C_2{H}_{5}OH)$ :

nitrous acid $(HN{O}_2)$ :

sodium hydrogen carbonate $(NaHC{O}_3)$ :

Question $2$: Classify each of the following compounds as soluble or insoluble in water.

$($a$)PbC{l}_2$

$($b$)(N{H}_4{)}_{3}P{O}_4$

$($c$)Fe(OH{)}_3$