C. Sr (NO3)2 •2 H2O
Explanation:
A 30.7 g sample of Strontium nitrate, Sr(NO3)2⋅nH2O, is heated to a contstent mass of 22.9.
Therefore, the calculated hydration number is Sr (NO3)2 •2 H2O.
- both b and d.
-since b and d are the closest coastlines then that makes it the most affected.
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