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BellaK
@BellaK
August 2021
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Решите:
фото.если что напишу)
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svin99
Масса чистого оксида хрома = 8000*0,95 = 7600 г.
Cr2O3 + 2Al = Al2O3 + 2Cr
152 г 104 г
7600 г х
х = 7600*104/152 = 5200 г.
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BellaK
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Answers & Comments
Cr2O3 + 2Al = Al2O3 + 2Cr
152 г 104 г
7600 г х
х = 7600*104/152 = 5200 г.