ximiya_sor-7_9-klass demo

[image: ] 9- klass. ximiya iv chetvert sor-7 demo razdel tema otsenivaemie naviki zadanie ball iv razdel. metalli jelezo opredelyaetelektronnuyu konfiguratsiyu jeleza napishite elektronnuyu konfiguratsiyu jeleza. 2 gidroksidi jeleza (ii) i (iii) soli dvuxvalentnogo i trexvalentnogo jeleza opredelyaeturavneniya reaktsiy, svyazannix s gidroksidami (ii) i (iii) jeleza, solyami dvuxvalentnogo i trexvalentnogo jeleza. napishite uravneniya reaktsiy, kotorie pozvolyayut osushestvit sleduyushie prevrasheniya.: [bookmark: _hlk165793028]fe → fecl2 → fe(oh)2 → feo 9 marganets. polojenie v periodicheskoy tablitse. stroenie atoma opredelyaet stepen okisleniya margantsa opredelite izmenenie stepeni okisleniya margantsa. kmno4 – hmno4 – mn2o7 3 jelezo opredelyaetzadachi po ximicheskim svoystvam jeleza. 2...

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