Ответ:
а) 2K2Cr2O7 + 3CH3OH + 8H2SO4 → 3HCOOH + 2Cr2(SO4)3 + 2K2SO4 + 11H2O
б) Cr2O3 + 3Ca(ClO)Cl + 4NaOH → 2Na2CrO4 + 3CaCl2 + 2H2O
в) 2K2CrO4 + 3K2SO3 + 5H2O → 2Cr(OH)3 + 3K2SO4 + 4KOH
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Verified answer
Ответ:
а) 2K2Cr2O7 + 3CH3OH + 8H2SO4 → 3HCOOH + 2Cr2(SO4)3 + 2K2SO4 + 11H2O
б) Cr2O3 + 3Ca(ClO)Cl + 4NaOH → 2Na2CrO4 + 3CaCl2 + 2H2O
в) 2K2CrO4 + 3K2SO3 + 5H2O → 2Cr(OH)3 + 3K2SO4 + 4KOH