To answer this question you must know the solubilities of substances. Here is a simplified list. For example, look on this chart and you will see that Fe(OH)2 is insoluble is soluble.
http://en.wikipedia.org/wiki/Solubility_table#P
Which of the following solutions will not form a precipitate when added to 0.10M NaOH?
a)0.10 M MgBr2
b) 0.10 M NH4Br
c) 0.10 M FeCL2
1 answer