28. Решение задачи по химии №002 846

5. Write the reaction equations by which thallium (III) compounds are obtained from thallium (I) compounds:
a) Tl2SO4 K2Cr2O7 H2SO4 →;
b) Tl2SO4 Br2 KOH →;
c) Tl2S HNO3 →.

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