Question

Ajutor
exercițiile încercuite va rog urgent
3.4. 3.5

Answer 1

3.4

2 baze:

Cu(NO3)2 + 2NaOH => Cu(OH)2 + 2NaNO3

AgNO3 + NaOH => AgOH + NaNO3

3 acizi:

H2 + Cl2 => 2HCl

ZnS + 2HCl => ZnCl2 + H2S

AgNO3 + HCl => AgCl + HNO3

4 cloruri:

ZnS + 2HCl => ZnCl2 + H2S

AgNO3 + HCl => AgCl + HNO3

NaOH + HCl => NaCl + H2O

Cu(NO3)2 + HCl => CuCl2 + HNO3

3.5

a)

Cl2 + H2 => 2HCl

HCl + Fe => FeCl2 + H2

2FeCl2 + Cl2 => 2FeCl3

3AgNO3 + FeCl3 => 3AgCl + Fe(NO3)3

b)

KClO3 + 6HCl => KCl + 3Cl2 + 3H2O

2Fe + 3Cl2 => 2FeCl3

Cl2 + H2 => 2HCl

2HCl + Pb(NO3)2 => PbCl2 + 2HNO3