Question

The following skeletal oxidation-reduction reaction occurs under acidic conditions. Write the balanced OXIDATION half reaction. 

Co²⁺ + Cr³⁺  Co + Cr₂O₇^2-

^{I need the reactants and products}

Answer 1

The balanced oxidation half reaction;

$C_2O_4^{2 -} \to 2CO_2+2e^{-}$

Reconciling the oxidation and reduction and simplifying ;

$Cr_2O_7^{-2} +14H^{+}+3C_2O_4^{2-}\to 2Cr^{+3}+7H_2O+6CO_2$