swaggkidd4856 swaggkidd4856 23-08-2022 Chemistry contestada Balance each skeleton reaction, use Appendix D to calculate Ecell°, and state whether the reaction is spontaneous:(a) Cd(s) + Cr₂O²⁻(aq) → Cd²⁺(aq) + Cr₇³⁺(aq)