Question

P->P2O5->H3PO4->Ca3(PO4)2->Mg3(PO4)2->Na3PO4

Answer 1

Ответ:

Объяснение:

4P+5O2=2P2O5

P2O5 + 3H2O = 2H3PO4

3Ca + 2H3PO4 = Ca3(PO4)2 + 3H2↑

Ca3(PO4)2 + 3MgO = Mg3(PO4)2 + 3CaO

6Na + Mg3(PO4)2 = 2Na3PO4 + 3Mg

Answer 2

The sequence you've provided appears to be a series of chemical reactions involving different compounds containing phosphorus (P). Here's an explanation of each step in the sequence:

1. P -> P2O5: This reaction involves the oxidation of elemental phosphorus (P) to form phosphorus pentoxide (P2O5). The balanced chemical equation for this reaction would be: 4P + 5O2 → 2P2O5

2. P2O5 -> H3PO4: Phosphorus pentoxide (P2O5) reacts with water (H2O) to produce phosphoric acid (H3PO4). The balanced chemical equation for this reaction would be: P2O5 + 3H2O → 2H3PO4

3. H3PO4 -> Ca3(PO4)2: Phosphoric acid (H3PO4) can react with calcium hydroxide (Ca(OH)2) to form calcium phosphate (Ca3(PO4)2), which is often referred to as calcium phosphate tribasic. The balanced chemical equation for this reaction would be: 2H3PO4 + 3Ca(OH)2 → Ca3(PO4)2 + 6H2O

4. Ca3(PO4)2 -> Mg3(PO4)2: Calcium phosphate (Ca3(PO4)2) can react with magnesium sulfate (MgSO4) to form magnesium phosphate (Mg3(PO4)2). The balanced chemical equation for this reaction would be: 3Ca3(PO4)2 + 2MgSO4 → 2Mg3(PO4)2 + 3CaSO4

5. Mg3(PO4)2 -> Na3PO4: Magnesium phosphate (Mg3(PO4)2) can react with sodium hydroxide (NaOH) to form sodium phosphate (Na3PO4). The balanced chemical equation for this reaction would be: Mg3(PO4)2 + 6NaOH → 3Na3PO4 + 3Mg(OH)2

So, the overall sequence of reactions you've provided starts with elemental phosphorus (P) and leads to the formation of sodium phosphate (Na3PO4) through a series of chemical transformations involving various intermediates. Each step in the sequence represents a distinct chemical reaction.