2Cu+O2 ~~2 CuO0 h' |, L) H% ^; w( S! j
3 Cu+O2~~CuO+ Cu2O( l6 H1 A5 ~( }+ {3 Y3 p z
CuO+2NH4OH+2NH4cl ~~~ Cu(NH3)4cl2+3H2O
, g% h o8 n$ p: {Cu2O+2NH4OH+2NH4cl_____2Cu(NH3)2cl+3H2O# z( O+ U; O3 `5 L* m& ^8 V0 r
Cu(NH3)2cl+4NH4OH+4NH4cl+O2___
7 Q. O- x% I! w
" N& S/ R- m& u" q9 z' O& q4Cu(NH3)4cl2 +6H2O
2 P6 I+ B" v& y1 Z* [. @Cu(NH3)4cl2 +Cu ___ 2Cu(NH3)2cl8 r2 e$ |& ^7 S
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