Based on the chemistry described in this chapter and others, propose balanced chemical
Chapter 23, Problem 23.72(choose chapter or problem)
Based on the chemistry described in this chapter and others, propose balanced chemical equations for the following sequence of reactions involving nickel: (a) The ore millerite, which contains NiS, is roasted in an atmosphere of oxygen to produce an oxide. (b) The oxide is reduced to the metal, using coke. (c) Dissolving the metal in hydrochloric acid produces a green solution. (d) Adding excess sodium hydroxide to the solution causes a gelatinous green material to precipitate. (e) Upon heating, the green material loses water and yields a green powder.
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