39. Решение задачи по химии №003 904

127. Indicate among the listed Fe(OH)2, Fe(OH)3. Ni(OH)3, Ni(OH)2 is the strongest base in terms of electrolytic dissociation:
1) Fe(OH)2, 2) Fe(OH)3, 3) Ni(OH)3, 4) Ni(OH)2.

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