While many of my predictions matched up to the results, there were others that did not match.The whole Copper Chloride row, i predicted when reacted with another chemical would produce a compound that was soluble. It turned out that actually none of the chemicals mixed with Copper Chloride produced that compound that was soluble, and no reaction took place.Another one that didn't match up were Potassium Iodide with Potassium Dichromate, and Potassium Iodide with Copper Chloride. I think that the first one didn't match up because when they were put together the same thing was formed that had already been present.
When using the precipitation reaction nitrate is filtered out of waste water. In table F it forms a soluble compound so it would stay in the water and need to be taken out by being evaporation. Sulfate is a good ion to use as a percipitate because it isnt a soluble ion. Meaning that it wouldn't mix in with the rest of the soultion, so it could be used to seperate whatever needed to be taken out.
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