Add the physical state for each substance in the following aqueous reactions. Th
ID: 946237 • Letter: A
Question
Add the physical state for each substance in the following aqueous reactions. Then write and balance a net ionic equation for each reaction.
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
AP 17
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
AP 34
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
AP 55
(a) Cr2(SO4)3 + KOH Cr(OH)3 + K2SO4(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
AP 17
(b) K2CrO4 + PbCl2 KCl + PbCrO4
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
AP 34
(c) Na2SO3 + H2SO4 Na2SO4 + H2O + SO2
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
(aq)
(s)
(g)
(l)
AP 55
Explanation / Answer
In order to know the state of the compounds, you will need to know the Ksp of the products. The one with the smallest value will be the one to precipitate, and it will have the solid state. I already look for the Ksp in my text book, so I'm gonna put directly the state. If you want me to put those values, please tell me.
a) Cr2(SO4)3(aq) + 6KOH(aq) ---------->2Cr(OH)3(s) + 3K2SO4(aq)
Ion equation: 2Cr+3(aq) + 3SO42-(aq) + 6K+(aq) + 6OH-(aq) ----------> 2Cr(OH)3(s) + 6K+(aq) + 3SO42-(aq)
net equation: 2Cr+3(aq) + 6OH-(aq) ----------> 2Cr(OH)3(s)
b) K2CrO4(aq) + PbCl2(aq) ---------> 2KCl(aq) + PbCrO4(s)
Ion equation: 2K+(aq) + CrO42-(aq) + Pb2+(aq) + 2Cl-(aq) -----------> 2K+(aq) + 2Cl-(aq) + PbCrO4(s)
Net equation:CrO42-(aq) + Pb2+(aq) -----------> PbCrO4(s)
c) Na2SO3(aq) + H2SO4(aq) -----------> Na2SO4(aq) + H2O(l) + SO2(g)
Ion equation: 2Na+ + SO32- + 2H+ + SO42- ------------> 2Na+ + SO42- + H2O(l) + SO2(g)
Net equation: SO32- + 2H+------------> H2O(l) + SO2(g)
Hope this helps
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