1. 4P + 5O₂ = 2P₂O₅
2. P₂O₅ + 6NaOH = 2Na₃PO₄ + 3H₂O
N2 +3H2=2NH3
4NH3+5O2=4NO+6H2O
HNO3 + NH3 = NH4NO3
Zn + 2HCl = ZnCl2 + H2
m(HCl) = 80*20 /100 = 16 г
M(HCl) = 36.5 г/моль
n(HCl) = 16/36.5 = 0.44 моль
n(H2) = 0.44 :2 = 0.22 моль
V(H2) = 22.4 * 0.22 = 4.93 л
CI2+H2=2HCI
<span>HCI+NaOH=NaCI+H2O
</span><span>2NaCl + 2H2O = 2NaOH + H2 + Cl2
</span><span>Cl2 + Cu = CuCl2
</span>CuCl2<span> + 2AgNO3 → </span>2AgCl