Balance the following net ionic equations which represent reactions to be perfor

Question

Balance the following net ionic equations which represent reactions to be performed in this lab experiment.

____Cu(s) + ____H+(aq) + ____NO3-(aq) ? ____Cu2+(aq) + ____NO2(g) + ____H2O(l)




____Cu2+(aq) + ____OH-(aq) ? ____Cu(OH)2(s)




____Cu(OH)2(s) ? ____CuO(s) + ____H2O(l)




____CuO(s) + ____H+(aq) + ____HSO4-(aq) ? ____Cu2+(aq) + ____SO42-(aq) + ____H2O(l)




____Cu2+(aq) + ____Zn(s) ? ____Cu(s) + ____Zn2+(aq)




____Zn(s) + ____H+(aq) ? ____Zn2+(aq) + ____H2(g)

Explanation / Answer

1.Cu = Cu2+ + 2e- NO3- + 2 H+ + 1e-= NO2 + H2O Cu + 2 NO3- + 4 H+ = Cu2+ + 2 NO2 + 2 H2O 2. 2Na+ + 2OH- + Cu2+ + 2NO3- ------> Cu(NO3)2 (s) + 2Na+ + 2NO3- 3.Cu(OH)2(s) -> CuO(s) + H2O(l) CuO(s) + 2(H+)(aq) -> (Cu2+)(aq) + H2O(l) 6. Zn(s) + Cu2+(aq) ? Zn2+(aq) + Cu(s)

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