Photos K O2

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K o2. K2cr2o7 CR. K2cr2o7 HCL. K2cr2o7 HCL ОВР. K2cr2o7+HCL=KCL+crcl3+cl2+h2o ОВР.
K2cr2o7 CR. K2cr2o7 HCL. K2cr2o7 HCL ОВР. K2cr2o7+HCL=KCL+crcl3+cl2+h2o ОВР.

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