1)
2 NaOH + 2CL = NaCL + NaCLO + H2O
ZnCL2 + 2NaOH = Zn(OH)2 + 2NaCL
NaOH + HCL = NaCL + H2O
2NaOH + CO2 = Na2CO3 + H2O
2)
Cu(OH)2 = CuO + H2O
Сu(OH)2 + H2SO4 = CuSO4 + 2H2O
<em>1)Zn</em><span> + 4HNO3 = </span>Zn<span>(</span>NO3<span>)</span>2<span> + 2NO2 + 2H2O</span>
2)Zn(NO3)2 + 2Na = Zn + 2NaNO3
<span><span>3)Zn+ Cl2= ZnCl2</span></span>
<span><span>4)ZnCl2 + 2NaOH = ZnO + NaCl + H2O</span></span>
<span><span>5)ZnO + 2HNO3 = Zn<span>(NO3)2 + H2O</span></span></span>
6Li+N2-2Li3N
Li(0)-1e=Li(+1) |6
N2(0)+6e=2N(-3) |1
Li(0)-восстановитель
N2(0)-окислитель
Zn+2HCl=ZnCl2+H2
13/65=0,2 моль - цинка
2*0,2=0,4 г - водорода