July 2022 1 17 Report

Вместо вопросительного знака напишите формулу соответствующего вещества и нижеприведенных реакциях. Уравняйте реакции, расставив коэффициенты, и определите их тип:

1)      Mg + ?→MgO

2)      Fe(OH)3→Fe2O3 + ?

3)      Zn + ? → Cu + ZnCl2

4)      ? + HCl → ZnCl2 + ?

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