В двух пробирках находился раствор нитрата бария, в одну пробирку добавили раствор серной кислоты, а в другую – раствор хлорида натрия. В какой из пробирок реакция до конца? Напишите уравнение реакции в молекулярном и сокращённом ионном виде.
Это Мышьяк Мышьяк - довольно известный яд, но в течение многих столетий его использовали в качестве лекарства. В традиционной китайской медицине, мышьяк известен как "Пи Шуан". Мышьяк был также ключевым ингредиентом во многих патентованных лекарствах, в том числе в "Решении Фаулера" - лекарстве от малярии и сифилиса, которое использовалось с конца 18 века до 1950-х годов. Еще один патентованный препарат, содержащий мышьяк, использовался для лечения артрита и диабета. Женщины в викторианскую эпоху использовали мышьяк в качестве косметики. Все подобные процедуры, конечно, приводили к отравлению мышьяком.
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