K2Cr2O7 + 6 KI + 7 H2SO4 → 4 K2SO4 + Cr2(SO4)3 + 3 I2 + 7 H2O
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Reactants:
- K2Cr2O7 – Potassium dichromate(VI)
- Other names: Potassium dichromate , Chromium potassium oxide , Dipotassium dichromium heptaoxide ... show more show less
- Appearance: Red-orange crystalline solid ; Orange-to-red crystals
- KI
- Names: Potassium iodide , KI , Thyrosafe ... show more show less
- H2SO4 – Sulfuric acid
- Other names: Oil of vitriol , Sulfuric acid, concentrated (> 51% and < 100%) , H2SO4 ... show more show less
- Appearance: Clear, colorless liquid ; Odourless colourless oily hygroscopic liquid ; Colorless to dark-brown, oily, odorless liquid. [Note: Pure compound is a solid below 51°F. Often used in an aqueous solution.]
Products:
- K2SO4
- Names: Potassium sulfate , Potassium sulphate , Dipotassium sulfate ... show more show less
- Appearance: White solid ; Colourless-to-white crystals
- Cr2(SO4)3 – Chromium(III) sulfate
- Other names: Basic chromium sulfate , Chromic sulfate
- Appearance: Reddish-brown crystals (anhydrous), purple crystals (hydrated)
- I2
- Names: Iodine , Jod , Iode ... show more show less
- Appearance: Bluish black or dark purple crystals with pungent odour ; Violet solid with a sharp, characteristic odor.
- H2O – Water, oxidane
- Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show more show less
- Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
Từ khóa » Cân Bằng K2cr2o7 + Ki
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KI + K2Cr2O7 + H2SO4 = I2 + K2SO4 + Cr2(SO4)3 + H2O
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K2Cr2O7 + KI + H2SO4 = Cr2(SO4)3 + K2SO4 + I2 + H2O
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H2SO4 K2Cr2O7 KI = H2O I2 K2SO4 Cr2(SO4)3 | Phản ứng Hóa Học
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K2Cr2O7 KI KHSO4 = H2O I2 K2SO4 Cr2(SO4)3 | Phản ứng Hóa Học
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Cho Phương Trình Hóa Học: K2Cr2O7 + KI + H2SO4→ Cr2SO43 + K2
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H2SO4 + K2Cr2O7 + KI - Cân Bằng Phương Trình Hóa Học
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K2Cr2O7 + KI + KHSO4 - Cân Bằng Phương Trình Hóa Học
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Cho Sơ đồ Phản ứng: K2Cr2O7 + KI + H2SO4 [đã Giải]
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Cho Phương Trình Hóa Học:K2Cr2O7 + KI + H2SO4 → Cr2(SO4)3 + ...
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1/K2Cr2O7 + H2S + H2SO4 --> Cr2(SO4)3 + S + K2SO4 + H2O 2 ...
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H2O + I2 + K2SO4 + Cr2(SO4)3 | Phương Trình Hóa Học
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Cho Phản ứng: K2Cr2O7 + K2SO3 + KHSO4 K2SO4 + Cr2(SO4)3 + ...
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Cân Bằng Pthh 1, CuS2+HNO3→Cu(NO3)2+H2SO4+N2O+H2O 2 ...
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K2Cr2O7 + HCl → CrCl3 + KCl + Cl2 + H2O