Predict whether the following reactions would occur spontaneously in aqueous solution at 2...

Predict whether the following reactions would occur spontaneously in aqueous solution at 25°C. Assume that the initial concentrations of dissolved species are all 1.0 M.

(a) Ca(s) + Cd2+(aq) Ca2+(aq) + Cd(s)

(b) 2Br−(aq) + Sn2+(aq) Br2(l) + Sn(s)

(c) 2Ag(s) + Ni2+(aq) 2Ag+(aq) + Ni(s)

(d) Cu+(aq) + Fe3+(aq) Cu2+(aq) + Fe2+(aq)