K2Cr2O7 + Na2s + H2SO4 + H2O -----> K2SO4 + Cr2(SO4)3 + Na2sSO4 + H2O

Question

K2Cr2O7 + Na2s + H2SO4 + H2O -----> K2SO4 + Cr2(SO4)3 + Na2sSO4 + H2O

Answer 1

Решение.

1) K2Cr2O7+3Na2S+7H2SO4=Cr2(S04)3+3S+K2SO4+3Na2So4+7H2O.