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- tajriba . Molekula ichidagi oksidlanish -qaytarilish reaksiyasi



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8-laboratoriya - talabalarga

7- tajriba . Molekula ichidagi oksidlanish -qaytarilish reaksiyasi.

Bir necha dona ammoniy bixromat- (NH4)2Cr2O7 kristalini azbestlangan turga quyib, parchalanish reaksiyasi sodir bo’lguncha qizdiring. Reaksiya natijasida qattik modda - CrO3 gaz holadagi azot - N2 varangli modda hosil bo’lishiga etibor bering.

(NH4)2Cr2O7Cr2O3+N2+4H2O

Reaksiyasi tenglamasini yakunlang va elektron tenglamasi asosida koefitsientlar qo’ying. Oksidlovchi va qaytaruvchini ko’rsating.



qaytaruvchi

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