Identify the type of each reaction in the copper cycle.
a. Cu(NO3) 2 (aq) + 2NaOH(aq) → Cu(OH) 2(s) + 2 NaNO3 (aq)
b. Cu(OH) 2(s) CuO (s) + H₂O(g)
c. CuO (s) + 2 H2SO4 (aq) → CuSO4 (aq) + H2O (1)
d. CuSO4 (aq) + Zn(s) → ZnSO4 (aq) + Cu(s)