Images 4 NA H2

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4 na h2. CR(Oh)3 + al oh3 + h2o2. Cr2o3 3co 2cr 3co. H2s уравнение реакции.
CR(Oh)3 + al oh3 + h2o2. Cr2o3 3co 2cr 3co. H2s уравнение реакции.

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