Use the standard reduction potentials given below to predict if a reaction will occur when Co metal is put into a ( 1 mathrm{M} ) aqueous Cd ( { }^{2+} ) solution.
[
egin{array}{|l|l|}
hline mathrm{Co}^{2+}(a q)+2 e^{-}
ightarrow mathrm{Co}(s) & E_{ ext {red }}^{o}=-0.280 mathrm{~V} \
hline mathrm{Cd}^{2+}(a q)+2 e^{-}
ightarrow mathrm{Cd}(s) & E_{ ext {red }}^{o}=-0.403 mathrm{~V} \
hline
end{array}
]
If a reaction will occur, write a balanced net ionic equation for the reaction. If no reaction will occur, leave all boxes blank.
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s), If a box is not needed, leave it blank.)
