Asked by Lauren

Which if the following compounds is insoluble in water

(NH4)2CO3
AgBr
CuSO4
KI
LiNO3

is it CuSO4 because sulfates are insolube
Answered by DrBob222
Use that solubility chart.
Answered by DrBob222
<b>Here is rule 4 of the solubility rules I posted yesterday and today. Note that copper is not listed as an exception; therfore, CuSO4 is soluble.</b>

All sulfates are soluble, except those of barium, strontium, calcium, lead, silver, and mercury (I). The latter three are slightly soluble.