Each reaction needs to be balanced and all physical states (s, l, g, aq) noted (you may need to look these up or read the lab to determine the physical states).
(1) HNO3+ Cu= Cu(NO3)2+ H2O+ NO2
(2) Cu(NO3)2+ NaOH=Cu(OH)2+ NaNO3
(3) Cu(OH)2+ heat =CuO+ H2O
(4) CuO+ H2SO4=CuSO4+ H2O
(5) CuSO4+ Zn=Cu(s) + ZnSO4