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Chemistry, 23.10.2019 05:00 kaileyy06

Chemical analysis of a reaction mass resulting from the reaction of 2.000 grams of chromium ( molar mass= 52.0 g/mole) with pure oxygen (molar mass= 16.0 g/mole) yielded a material with a weight of 3.846 grams
which of the following was prepared? cr0, cr203,cr02 or cro3?

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