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CoCl42-(aq, blue) + 6H2O(l) ⇌ Co(H2O)62-(aq, pink) + 4Cl-(aq) [REVERSIBLE EQ.]
QUESTION: When the pink equilibrium solution formed from CoCl2 was placed in a hot water bath, the solution turned blue. When placed into an ice bath, it turned back to pink. Cite specific observation results to identify the forward reaction in this equilibrium as an exothermic, or as an endothermic process. Write an equation for this equilibrium depicting heat as a reactant or producr of the reaction.
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Based on our data, we think this problem is relevant for Professor Piao's class at CSUN.