The balanced equation for the reaction is as follows:
Co(NO3)2 + Al + Co(NO3)2 + Cr → Al(NO3)3 + Co + Cr(NO3)2
The balanced equation for the reaction is as follows:
Co(NO3)2 + Al + Co(NO3)2 + Cr → Al(NO3)3 + Co + Cr(NO3)2