Question

Which of the following reactions represents AH
(hydration)-
(1) CuSO4(s) + (aq) → CuSO4(aq);
AH = - XKJ
(2) BaCl,(s) + 2H2O(l) → BaCl2. 2H2O(s);
AH = - X’KJ
(3) CuSO4(s) + 5H2O(l) + (aq) → CuSO4
5H2O(aq); AH=- y’KI
(4) None of the above​

Answer 1

I think it's answer is 3rd .

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