57. Решение задачи по химии №005 761

6. Indicate which of the listed processes are oxidation, which reduction: Na → Na; SO42- → S2–; NO → NO3-
The reaction equation is expressed by the scheme:
BiCl3 SnCl2 KOH → Bi K2SnO3 KCl H2O
Solve the equation by the ion-electron method, arrange the coefficients.

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