1) KOH - K2O, Ca(OH)2 - CaO, NaOH - Na2O, Ba(OH)2 - BaO, LiOH - Li2O
2) HClO4
3) Na2O + H2O = 2NaOH
2Al + 6HCl = 2AlCl3 + 3H2
H2 + I2 = 2HI
Zn + 2HCl = ZnCl2 + H2
4)
Первая цепочка:
4Na + O2 = 2Na2O
Na2O + H2O = 2NaOH
NaOH + HCl = NaCl + H20
Вторая цепочка:
H2 + Cl2 = 2HCl
HCl + NaOH = NaCl + H2O
NaCl + AgNO3 = AgCl + NaNO3