Print CalculatorPeriodic Table Question 2 of 6 Sapling Learning A solution conta

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Print CalculatorPeriodic Table Question 2 of 6 Sapling Learning A solution containing a mixture of metal cations was treated with dilute HCI and no precipitate formed. Next, H2S was bubbled through the acidic solution. A precipitate formed and was filtered off. Then, the pH was raised to about 8 and HS was again bubbled through the solution. A precipitate again formed and was filtered off. Finally, the solution was treated with a sodium carbonate solution, which resulted in no precipitation. Which metal ions were definitely present, which were definitely absent, and which may or may not have been present in the orginal mixtuire? Definitely presentDefinitely absent Possibly present Previous ®Give Up & View Solution "Check Answer Next

Explanation / Answer

Definitely present

Pb2+, Ag+, Cd2+, Hg2+, Hg+, Bi3+, Sn4+, Mn2+, Fe2+

Definitely absent

K+, Mg2+, Ca2+,

May be

Cr3+

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