Question

Balance the following equation ; [5]

i) Pb(NO3)2 -------- PbO + NO2 +O2

ii) K + H2O ---------- KOH + H2

iii) Fe + H2O -------- Fe3O4 + H2

iv) Zn + NaOH ------ Na2ZnO2 + H2

v) PbCl2 + KI ------ PbI2 + KCl​

Answer 1

Answer

Pb(NO3)2 -------- PbO + 2NO2 +O2

2K + 2H2O ---------- 2KOH + H2

3Fe + 4H2O -------- Fe3O4 + 4H2

Zn + 2NaOH ------ Na2ZnO2 + H2

PbCl2 + 2KI ------ PbI2 + 2KCl​

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