In the following reaction sequence in aqueous solution, the species X, Y and Z, respectively, are

$S_{2} O_{3}^{2 -} \overset{A g^{+}}{\to} \underset{clear solution}{X} \overset{A g^{+}}{\to} \underset{white precipitate}{Y} \overset{with time}{\to} \underset{black precipitate}{Z}$

Question

In the following reaction sequence in aqueous solution, the species X, Y and Z, respectively, are S 2 O 3 2 - → A g + X clear solution → A g + Y white precipitate → with time Z black precipitate

TestHub · Accepted Answer

S 2 O 3 2 - → A g + [ A g ( S 2 O 3 ) 2 ] 3 - X → A g + A g 2 S 2 O 3 Y → A g 2 S Z black ppt

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