In chemistry right now we're learning solubility rules, so I know whether nitrates, chlorides, sulfates, oxides, hydroxides and carbonates are soluble or insoluble.
In class today we did precipitation reactions where we had to predict if the reaction between Lead (II) Nitrate and Potassium Iodide would form a precipitate or not? I know that the two products I could get from this reaction would be Lead Iodide and Potassium Nitrate. However, the solubility rules that I was given as a handout did not say anything about compounds like Lead Iodide, it only told me that Potassium Nitrate was soluble in water.
So with this, I presumed that there was going to be no precipitate, however, when I did the experiment I found that a yellow precipitate was formed which must be the Lead Iodide. But my question is, how would I know that Lead Iodide is insoluble in water? Is there a rule for compounds like this as like I said before I only know about nitrates, chlorides, sulfates, oxides, hydroxides and carbonates.
Thanks for your help, and sorry if this was so long lol