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March 28, 2015

Homework Help: Chemistry

Posted by Julia on Monday, November 7, 2011 at 10:03am.

IS THIS RIGHT?
Experiments were performed with four metals and solutions of their ions: A-A^+, B-B^2+, C-C^2+, D-D^2+. The results of the experiments were:

D^+2 + C ---> No reaction
B^+2 + C---> B + C^+2
A^+ + B ---> A + B^+2

a.) Write the equation for each reduction half reaction.
I got..
D^+2 + 2e^- -->2A^-
C^2+ + 2e^- -->2B^-
B^2+ + 2e^- -->2C^-
A^2+ + 2e^- -->2D^-

B.) Arrange them in a relative reduction potential table with the easiest to reduce at the top and the hardest to reduce at the bottom.

I got...
D^2+ + 2A^- --> 2e^-
C^2+ + 2B^- --> 2e^-
B^2+ + 2C^- --> 2e^-
A^2+ + 2C^- --> 2e^-

C.) write the equation for each oxidation half reaction. I cant get this one

D.) Arrange them in a relative oxidation potential table with the easiest to oxidize at the top and the hardest to oxidize at the bottom.
I cant get this one either

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