1571. Complete the reactions characterizing the ratio of elements to simple oxidizing agents. Give a description of the resulting products; their relationship to water. Specify the areas of application of the resulting products.
1571. a) Pd(t) Br2(g) ... b) Fe(t) S(t) ...
c) Co(t) Cl2(g) … d) Os(t) Сl2(g) …

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