Write the reaction equation P → P2O5 → H3PO4 → Ca3 (PO4) 2 ↓ Na3PO4.
| March 4, 2021 | education
1) 4P + 5O2 → 2P2O5 (compound reaction; phosphorus, oxygen, phosphorus (V) oxide);
2) P2O5 + 3H2O → 2H3PO4 (compound reaction; phosphorus (V) oxide), water phosphate acid);
3) 2H3PO4 + 3Сa (OH) 2 → Ca3 (PO4) 2 ↓ + 6H2O (exchange reaction; phosphate acid, calcium hydroxide, calcium phosphate, water);
4) Ca3 (PO4) 2 ↓ + 6NaNO3 → 2Na3PO4 + 3Ca (NO3) 2 (exchange reaction; calcium phosphate, sodium nitrate, sodium phosphate, calcium nitrate).
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