Question

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Answer 1

1) Sb(OH)3 +3 HCl = SbCl3 + 3H2O

Sb(OH)3 +2NaOH = Na[Sb(OH)4]

2) V+5)O(-2),  Ca(+2)O(-2)H(+)Cl(-)

3) a)Na -> Na2O -> NaOH -> NaCl

  4Na + O2 = 2Na2O

Na2O + H2O = 2NaOH

NaOH + HCl = NaCl + H2O

б) S->SO2-> H2SO3 -> Na2SO3

S + O2 = SO2

SO2 + H2O = H2SO3

H2SO3 + Na2O = Na2SO3 + H2O

4) 2K + Cl2 = 2KCl

2K + 2HCl =2 KCl + H2

KOH + HCl = KCl + H2O

K2O +2 HCl = 2KCl + H2O