Images K O2

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K o2. H2+cl2 ОВР. Cr03+cl2. K2cr2o7 cl2. ОВР из k2cr2o7 CR+3.
H2+cl2 ОВР. Cr03+cl2. K2cr2o7 cl2. ОВР из k2cr2o7 CR+3.

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