G-Chem Question

[Mtd0588]

Hi all

I have a quick g-chem question from Kaplan:

which reaction will not proceed?

A. li + CuCl2-->
B. Zn + NaNO3-->
C. CaCO3 + HCl-->
D. K + H20 -->
E. H+ + OH- -->

The answer is B, but I'm not sure why..

Thanks for your help

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[Mtd0588]

That helps a lot,

Thanks!