Question

Complete and balance the unfinished equations:

A) Cu(s) + 4HNO3(aq) ? Cu(NO3)2(aq) + 2NO2(g) +2H20(l)

B) Cu(NO3)2(aq) +NaOH(aq) ? ?

C) Cu(OH)2(s) ? CuO(s) + H2O(l)

D) CuO(s) + H2SO4(aq) ? CuSO4(aq) + H2O(l)

E) CuSO4(aq) + Zn(s) ? ?

Answer 1

A] Cu _(s) + 4HNO_{3 (aq)} $\rightarrow$ Cu(NO₃)_{2 (aq)} + 2NO_{2 (g)} + 2H₂O_{(l) .}

B] Cu(NO₃)_{2 (aq)} + 2NaOH _(aq) $\rightarrow$ Cu(OH)_{2 (s)} + 2NaNO_{3 (aq) .}

C] Cu(OH)_{2 (s)} $\rightarrow$ CuO _(s) + H₂O _(l),

D] CuO _(s) +H₂SO_{4 (aq)} $\rightarrow$ CuSO_{4 (aq)} + H₂O _(l).

E] CuSO_{4 (aq)} + Zn _(s) $\rightarrow$ ZnSO_{4 (aq)} + Cu _(s).