Predict products and write equations for precipitation reactions. Close Problem
ID: 484146 • Letter: P
Question
Predict products and write equations for precipitation reactions.
Close Problem
(a) When aqueous solutions of Ni(NO3)2 and CaI2 are mixed, does a precipitate form? _____yes/no
(b) Write a balanced equation for the precipitation reaction that occurs when aqueous solutions of iron(III) sulfate and potassium carbonate are combined.
Use the pull-down boxes to include states such as (s) or (aq).
Write net ionic equations for precipitation reactions.
Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of cobalt(II) sulfate and sodium phosphate are combined.
Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank.
Explanation / Answer
a) no precipitation occurs as thereaction products NiI2 and Ca(NO3)2 both are soluble in water. So reaction takes place.
b) the balanced equation is
Fe2(SO4)3 (aq) +3 K2CO3 (aq) -------> Fe2(CO3)3 (s) +3 K2SO4(aq)
c) 3 CoSO4 (aq) +2 Na3PO4 (aq)------> Co3(PO4)2 (s) +3 Na2SO4 (aq)is the balanced equation
The net ionic equation for the precipitation is
3Co+2 (aq) + 2 PO4-3(aq) ------> Co3(PO4)2 (s)
Net ionic reaction for the precipitation is
2Fe+3(aq) + 3CO3-2 (aq) ------> Fe2(CO3)3(s)
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