Angelica J.

asked • 11/02/15

CHEM HELP PLEASE???!!! A solution containing ions of an unknown element X is divided into 3 samples. Identify X.?(multiple choice!)

A solution containing ions of an unknown element X is divided into 3 samples. The following tests were performed on samples of the solution.
 
Sample              Test                   Observation
1                  Add H+ (aq)            No Change
2                  ADD OH-(aq)           No Change
3                 Add SO4-2 (aq)        No Change
 
A. Pb + 2 (aq)      B. Al + 3 (aq)       C. Ba +2 (aq)     D. Na + (aq)      E. CO3 -2 (aq)
 
Can you please help me? I need to learn why the correct answer is correct. I am just not sure how what to look for when trying to solve this. Is the fact there is no reaction for all three samples important? I think it is.
 
Thank you so much!

1 Expert Answer

By:

Bob K. answered • 11/02/15

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