December 2021 1 11 Report
Установите соответствие между двумя веществами и реактивом

Вещества :
А. BaSO4 и Ca3(PO4)2
Б. BaCl и MgCl2
В. Na2O и CuO

Реактив :
1. HNO3(разб.)
2. H2O
3. CaSO4
4. Na2S04
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