Write the reaction equation: Phosphorus – phosphorus oxide 5 – phosphoric acid – sodium phosphate

Write the reaction equation: Phosphorus – phosphorus oxide 5 – phosphoric acid – sodium phosphate – magnesium phosphate – magnesium

Phosphorus → phosphorus oxide 5 → phosphoric acid → sodium phosphate → magnesium phosphate → magnesium

P → P2O5 → H3PO4 → Na3PO4 → Mg3 (PO4) 2 → Mg

1) 4P + 5O2 → 2P2O5 (compound reaction);

2) P2O5 + 3H2O → 2H3PO4 (compound reaction);

3) H3PO4 + 3NaOH → Na3PO4 + 3H2O (exchange reaction);

4) 2Na3PO4 + 3MgCl2 → Mg3 (PO4) 2 ↓ + 6NaCl (exchange reaction);

5) 2Mg3 (PO4) 2 → 6Mg + 2P2O5 + 3O2 (decomposition reaction).