Question

P→ Ca3P2 → P2O5→ H3PO4 → Na3PO4 → Ag3PO4

Answer 1

2P + 3Ca = Ca3P2
Ca3P2  + 4O2 = 3CaO + P2O5
P2O5 + 3H2O = 2H3PO4
3NaOH + H3PO4 = Na3PO4 + 3H2O
Na3PO4 + 3AgNO3 = Ag3PO4 + 3NaNO3

Answer 2

Chemical Reactions in the Given Sequence

The chemical reactions in the given sequence are as follows:

1. P → Ca3P2 - Phosphorus reacts with calcium to form calcium phosphide. - The balanced chemical equation for this reaction is: ``` 3Ca + 2P → Ca3P2 ```

2. Ca3P2 → P2O5 - Calcium phosphide reacts with oxygen to form diphosphorus pentoxide. - The balanced chemical equation for this reaction is: ``` 4Ca3P2 + 15O2 → 6P2O5 + 12CaO ```

3. P2O5 → H3PO4 - Diphosphorus pentoxide reacts with water to form phosphoric acid. - The balanced chemical equation for this reaction is: ``` P2O5 + 3H2O → 2H3PO4 ```

4. H3PO4 → Na3PO4 - Phosphoric acid reacts with sodium hydroxide to form sodium phosphate and water. - The balanced chemical equation for this reaction is: ``` 3H3PO4 + 6NaOH → Na3PO4 + 6H2O ```

5. Na3PO4 → Ag3PO4 - Sodium phosphate reacts with silver nitrate to form silver phosphate and sodium nitrate. - The balanced chemical equation for this reaction is: ``` 3Na3PO4 + 4AgNO3 → Ag3PO4 + 3NaNO3 ```

Conclusion

The given sequence represents a series of chemical reactions starting with phosphorus and leading to the formation of silver phosphate. Each step in the sequence involves specific reactants and products, and the balanced chemical equations illustrate the transformation of substances throughout the reactions.