May 27, 2016

Homework Help: chemistry(check my asnwer)

Posted by eng on Saturday, April 17, 2010 at 7:30pm.

Why doesn't potassium ion K+ from KMnO4 appear in the following two unbalanced equations: MnO4 + C2O42 Mn2+ + CO2
MnO4 + Fe2+ Mn2+ + Fe3+ ?

A. KMnO4 is not added to either reaction.
B. The presence of K+ would result in a net positive charge in the products.
C. The equations cannot be balanced if the potassium ion K+ is present.
D. K+ is a spectator ion and redox reactions are written as net ionic reactions.
E. None of these.

i think it's D

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