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InquisitorMan
@InquisitorMan
August 2022
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Помогите, Очень Надо!
Провести окислительно-восстановительные процессы. Уровнять.
1) H2S+Br2+H2O===>H2So4+HBr
2) Cr2O3+NaNO3+KOH===>K2CrO4+NaNO2+H2O
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Answers & Comments
kedr57
1) H2S+4Br2+4H2O===>H2SО4+8HBr
S-2 -8e=S+6
Br2+2e=2Br-
2) Cr2O3+3NaNO3+4KOH===>2K2CrO4+3NaNO2+2H2O
Cr+3-3e=Cr+6
N+5+2e=N+3
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Answers & Comments
S-2 -8e=S+6
Br2+2e=2Br-
2) Cr2O3+3NaNO3+4KOH===>2K2CrO4+3NaNO2+2H2O
Cr+3-3e=Cr+6
N+5+2e=N+3