413. When iron chromite is fused with Fe (CrO2) 2 and sodium carbonate in the presence of oxygen, chromium (III) and iron (II) oxidize and acquire oxidation states of +6 and +3, respectively. Make up the electronic and molecular equations of the reaction.

After payment you receive a ready solution of the task 413 for chemistry from the methodology for correspondence students Shimanovich IL. 2004 (Coincides with the methodologies of 2001, 2003 - but just in case verify the conditions).
The solution is executed in WORD format (has extension task_d.doc). Archived by ZIP archiver. The decision was repeatedly passed in leading universities of the country, all mistakes and shortcomings were corrected.

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