January 2019 1 33 Report
6) Wykonać łańcuch przekształceń:
1) w s→Н2Ѕ→ЅО2→ЅО3→H2SO4
2) N2→NН3→(NН4)2SO4→NН3→N2
3) p→Р2О5→Н3РО4→Na3PO4→Са3(РО4)2

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