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Помогите пожалуйста быстро за рание спасибо
3-x/8=3/10
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Осуществить превращения:1K→K2O→K3PO4↓KOH→KNO32P→P2O5→H3PO4→Ca3(PO4)2↘ ↙Na3PO43Na→H2→H2O→KOH→KNO3
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даю 50 баллов 1 K→K2O→K3PO4 ↓ KOH→KNO3 2 P→P2O5→H3PO4→Ca3(PO4)2 ↘ ↙ Na3PO4 3 Na→H2→H2O→KOH→KNO3
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