Написать уравнения по цепочке превращения:
а) P → P2O5 → H3PO4 → Mg3(PO4)3
б) Ca → CaO → Ca(OH)2
↓→→→→→→→→→→↑
а) P → P2O5 → H3PO4 → Mg3(PO4)3
б) Ca → CaO → Ca(OH)2
↓→→→→→→→→→→↑
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Answers & Comments
2) P₂O₅ + 3H₂O = 2H₃PO₄
3) 2H₃PO₄ + 3Mg = Mg₃(PO₄)₂ + 3H₂
1) 2Ca + O₂ = 2CaO
2) CaO + H₂O = Ca(OH)₂