August 2022 1 17 Report
Даны массовые доли элементов в неизвестном соединении: 36,5% Na; 25,4% S; 38,1% O. Определите простейшую молекулярную формулу соединения.
1.Na2SO4
2.Na2S4O6
3.Na2SO3
4.Na2S2O3
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