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which anion will form a precipitate with Ba2+? A. C2H3O2- B. Br- C. SO4^2- D. Cl-...

which anion will form a precipitate with Ba2+?
A. C2H3O2-
B. Br-
C. SO4^2-
D. Cl-
E. None of the above
Science   Chemistry   
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Homework Answers

Answer #1

Solubility rules:

- Most alkali metal (group I metals) are always soluble

- Cations/Anions such as NH4+, HCO3-; ClO3-, NO3- are always soluble

- Most halides are soluble, F-,Cl-,Br-,I-, exceptions = Ag+, Hg2+2, Pb+2 compounds

- Most sulfates are soluble (SO4-2); exceptions = Ag+, Ca+2, Sr+2, Ba+2, Hg2+2, Pb+2 compounds

- In general (except all alkali metals) these ions will NOT be soluble: PO4-3, CrO4-2, S-2, CO3-2

then...

a --> soluble

B --> soluble

c --> forms BaSO4(s)

d --> soluble

choose C

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