Write a balanced chemical equation for each double displacement reaction. Write "NR" if you predicted that no reaction will occur. Note that K+, Na+, and Li+ ions form soluble compounds with all anions. All nitrate compounds are soluble. Sulfate compounds with Ca2+, Sr 2+, Ba 2+, Ra 2+ and Pb 2+ are insoluble, but most other sulfate compounds are soluble. Lead (II) iodid is insoluble.

FeCl3(aq) + Na2SO4 (aq) ---

NaNO3 (aq) + MgSO4 ----

Question

Write a balanced chemical equation for each double displacement reaction.   Write "NR" if you predicted that no reaction will occur. Note that K+, Na+, and Li+ ions form soluble compounds with all anions.  All nitrate compounds are soluble. Sulfate compounds with Ca2+, Sr 2+, Ba 2+, Ra 2+ and Pb 2+ are insoluble, but most other sulfate compounds are soluble. Lead (II) iodid is insoluble. 

FeCl3(aq) + Na2SO4 (aq) --->


NaNO3 (aq) + MgSO4 ---->

welshfella · Answer

i cant see any insoluble compounds being form in the above 2 examples.

welshfella · Answer

* formed

karlaltr · Answer

Exactly, its very confusing, for when there are insoluble compounds does this mean that there will be a precipitate formed? How does insolubility effect outcomes?

welshfella · Answer

A precipitate will be formed if one of the products is insoluble. Here there are no insolubles so we wont see anything happen.