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Chemistry
Chemistry
Problem
A white precipitate is obtained when: a. a solution of
BaCl
2
\text{BaCl}_2
BaCl
2
is treated with
Na
2
SO
3
\text{Na}_2\text{SO}_3
Na
2
SO
3
b. a solution of
NaAlO
2
\text{NaAlO}_2
NaAlO
2
is heated with
NH
4
Cl
\text{NH}_4\text{Cl}
NH
4
Cl
c.
H
2
S
\text{H}_2\text{S}
H
2
S
is passed through a solution of
ZnSO
4
\text{ZnSO}_4
ZnSO
4
d. a solution of
ZnSO
4
\text{ZnSO}_4
ZnSO
4
is treated with
Na
2
CO
3
\text{Na}_2\text{CO}_3
Na
2
CO
3
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