Массовая доля карбона, гидрогена и хлора в веществах соответственно равны 24, 24%, 4, 04% и 71, 72% относительная плотность паров соединения по водороду равна 49, 5% определите формулу вещества, назвать его
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inikonovich
11.06.2020
Вещество голубого цвета творожистое это гидроксид меди 2 (cuoh)2) оно взаимодействует с азотной кислотой и образуется нитрат меди 2 cu(oh)2 + 2hno3 = cu(no3)2 + 2h20 почти все соли меди в водном растворе голубой окрас поэтому скорее всего вещество содержит медь далее соль выпарили до остатка и прокалили и именно здесь хорошо видно что эта соль нитрат меди 2 потому что нитраты средних по активности металлов разлагаются на оксид металла оксид азота 4 и кислород оксид азота 4 имеет бурый окрас кислород поддерживает горение медь хоть и находится в ряду активности металлов дальше водорода и должна являться не активным металлом но при разложении нитрата будет именно оксид меди который имеет чёрный цвет 2cu(no3)2 = 2cuo + 4no2 + o2 надеюсь понятно объяснил : d а - cu(oh)2 б - hno3 в - cu(no3)2 г - no2 д - o2 е - cuo
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