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Under standard conditions which of the following situations will give a spontaneous chemical reaction? A. Dioxygen...

Under standard conditions which of the following situations will give a spontaneous chemical reaction?

A. Dioxygen is bubbled through an acidic solution of Fe2(SO4)3.

B. Copper foil is placed in a solution of ZnCl2.

C. Crystals of I2 are added to a solution of NaCl.

D. Silver foil is placed in a solution of zinc nitrate.

E. Dioxygen is bubbled through an acidic solution of FeSO4.

Answer is D. Can someone help me with this? Thanks in advance. :)

Consider the following galvanic cell: Zn(s)|Zn2+(aq)||Cu2+(aq)|Cu(s) The equilibrium constant (K) for the reaction of zinc metal with Cu2+ is closest to:

A. 1.71027

B. 5.71027

C. 6.21027

D. 1.71037

E. 7.71025

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