Question

P-P2O3-H3PO4-Na3PO4 помогите пожалуйста

Answer 1

4P+3O2=2P2O3
3P2O3+4HNO3+7H2O=4NO+6H3PO4
Н3РО4+3NaOH=Na3РО4+3Н20

Answer 2

Chemical Reactions Involving Phosphorus Compounds

The chemical reactions involving phosphorus compounds can be described as follows:

1. Formation of P2O5 from Phosphorus and Oxygen: - The reaction for the formation of P2O5 from phosphorus and oxygen is: 4P + 5O2 → 2P2O5.

2. Formation of H3PO4 from P2O5 and Water: - The reaction for the formation of H3PO4 from P2O5 and water is: P2O5 + 3H2O → 2H3PO4.

3. Formation of NaH2PO4, Na2HPO4, and Na3PO4 from H3PO4 and NaOH: - The reactions for the formation of NaH2PO4, Na2HPO4, and Na3PO4 from H3PO4 and NaOH are: - H3PO4 + NaOH → NaH2PO4 + H2O - NaH2PO4 + NaOH → Na2HPO4 - Na2HPO4 + NaOH → Na3PO4.

4. Formation of Ca3(PO4)2 from 2Na3PO4 and 3CaCl2: - The reaction for the formation of Ca3(PO4)2 from 2Na3PO4 and 3CaCl2 is: 2Na3PO4 + 3CaCl2 → Ca3(PO4)2 + 6NaCl [[1]](https://otvet.mail.ru/question/37339201).

5. Formation of H3PO4 from Ca3(PO4)2 and H2SO4: - The reaction for the formation of H3PO4 from Ca3(PO4)2 and H2SO4 is: Ca3(PO4)2 + 3H2SO4 → 3CaSO4 + 2H3PO4 [[1]](https://otvet.mail.ru/question/37339201).

6. Formation of Zn3(PO4)2 from 2H3PO4 and 3ZnO: - The reaction for the formation of Zn3(PO4)2 from 2H3PO4 and 3ZnO is: 2H3PO4 + 3ZnO → Zn3(PO4)2 + 3H2O.

Other Phosphorus Compounds and Reactions

In addition to the reactions mentioned above, other phosphorus compounds and reactions include:

- P2O3: This is a compound of phosphorus and oxygen. - NaNO3: This is sodium nitrate, a compound not directly related to the mentioned reactions. - CuSO4: This is copper(II) sulfate, also not directly related to the mentioned reactions. - MgCl2, H2SO3, ZnO, FeCl3, Ca(OH)2: These are other chemical compounds not directly related to the mentioned reactions.

Conclusion

The chemical reactions involving phosphorus compounds, such as the formation of various phosphates and phosphoric acid, play crucial roles in various industrial and laboratory processes. If you have specific questions about these reactions or need further assistance, feel free to ask!