Multiple Choice
A student is given a sample in lab that contains one of the ions listed below.After adding a few drops of AgNO3 solution to a portion of the unknown sample,the student observed a grayish precipitate.After adding a few drops of Mg(NO3) 2 solution to another portion of the unknown sample,the student got a black precipitate.Based on these observations,what is the only possible ion in this student's sample?
A) Cl-
B) F-
C) C2H3O2-
D) S2-
E) SO42-
Correct Answer:

Verified
Correct Answer:
Verified
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