X: Cu(OH)2
Y: CuO
Z: Cu
1) 2Cu(NO3)2\(\overset{t^0}{\rightarrow}\)2CuO+4NO2+O2
2) CuO+2HCl\(\rightarrow\)CuCl2+H2O
3) Cu(OH)2+2HCl\(\rightarrow\)CuCl2+2H2O
4) Cu(OH)2+2HNO3\(\rightarrow\)Cu(NO3)2+2H2O
5) Fe+CuCl2\(\rightarrow\)FeCl2+Cu
6) Cu+2AgNO3\(\rightarrow\)Cu(NO3)2+2Ag
X\(\rightarrow\)Y\(\rightarrow\)Z: Cu(OH)2\(\rightarrow\)CuO\(\rightarrow\)Cu
Cu(OH)2\(\overset{t^0}{\rightarrow}\)CuO+H2O
CuO+H2\(\overset{t^0}{\rightarrow}\)Cu+H2O