Question

P→P2O5→H3PO4→Na3PO4→Mg3(PO4)2​

Answer 1

Ответ:

P→+5O2=2P2O5

P2O5+3H2O=2H3PO4

H3PO4+3NaOH=Na3PO4+3H2O

2Na3PO4+3Mg(NO3)2=Mg3(PO4)2+6NaNO3

Answer 2

It looks like you've provided a series of chemical reactions involving phosphorus (P) and its compounds. Each arrow (→) represents a chemical transformation from one compound to another. Let's break down the reactions step by step:

1. P to P2O5:

   • Phosphorus (P) reacts with oxygen (O2) to form phosphorus(V) oxide, commonly known as phosphorus pentoxide (P2O5).

   The balanced chemical equation for this reaction is: 4 P + 5 O2 → 2 P2O5

2. P2O5 to H3PO4:

   • Phosphorus pentoxide (P2O5) reacts with water (H2O) to form phosphoric acid (H3PO4).

   The balanced chemical equation for this reaction is: P2O5 + 3 H2O → 2 H3PO4

3. H3PO4 to Na3PO4:

   • Phosphoric acid (H3PO4) reacts with sodium hydroxide (NaOH) to form sodium phosphate (Na3PO4) and water (H2O).

   The balanced chemical equation for this reaction is: 3 H3PO4 + 6 NaOH → Na3PO4 + 6 H2O

4. Na3PO4 to Mg3(PO4)2:

   • Sodium phosphate (Na3PO4) reacts with magnesium chloride (MgCl2) to form magnesium phosphate (Mg3(PO4)2) and sodium chloride (NaCl).

   The balanced chemical equation for this reaction is: 2 Na3PO4 + 3 MgCl2 → Mg3(PO4)2 + 6 NaCl

So, in summary, the series of reactions is:

P ➔ P2O5 ➔ H3PO4 ➔ Na3PO4 ➔ Mg3(PO4)2