1 Zn+CL=ZnCL2
ZnCl2+2NaOH(избав)=Zn(OH)2+2NaCl
Zn(OH)2==ZnO+H2O
ZnO+2HNO3=Zn(NO3)2+H2O
2 2Cu+O2=2CuO
CuO+2HCl=CuCl2+H2O
CuCl2+2NaOH=Cu(OH)2=2NaCl
Cu(OH)2==CuO+H2O
2CuO==2Cu+O2
<span>Cu(OH)2=CuO+H2O
</span>n(Cu(OH)2)=n(CuO)=14,7/98=0,15 по УХР
<span>n=m/М ; m=nM=0,15х80=12г</span>
<span>NH3: -3
NO: -2
N2O: -1
HNO3: +5
HNO2: </span>+3
CaC2+H2O-->Ca(OH)2+C2H2
C2H2+2H2-->C2H6