Question

Сделать цепочку хим. реакций Na—>Na2O—>Na3PO4—>AlPO4—>Al2O3

Answer 1

4Na+O2=2Na2O
3Na2O+2H3PO4=2Na3PO4+3H2O
Na3PO4+AlCl3=AlPO4+3NaCl
2AlPO4+3H2O=2H3PO4+Al2O3

Answer 2

Chemical Reactions Chain: Na -> Na2O -> Na3PO4 -> AlPO4 -> Al2O3

To create a chain of chemical reactions from sodium (Na) to aluminum oxide (Al2O3), we need to consider the reactions that occur when each substance reacts with the next in the sequence.

1. Sodium (Na) to Sodium Oxide (Na2O): - When sodium reacts with oxygen, it forms sodium oxide. - The balanced chemical equation for this reaction is: ``` 4Na + O2 -> 2Na2O ``` - This reaction occurs when sodium metal is burned in the presence of oxygen, producing sodium oxide [[1]].

2. Sodium Oxide (Na2O) to Sodium Phosphate (Na3PO4): - Sodium oxide can react with phosphoric acid to form sodium phosphate. - The balanced chemical equation for this reaction is: ``` 3Na2O + 2H3PO4 -> 2Na3PO4 + 3H2O ``` - This reaction involves the neutralization of sodium oxide with phosphoric acid to produce sodium phosphate and water [[2]].

3. Sodium Phosphate (Na3PO4) to Aluminum Phosphate (AlPO4): - Sodium phosphate can react with aluminum nitrate to form aluminum phosphate. - The balanced chemical equation for this reaction is: ``` 2Al(NO3)3 + 3Na3PO4 -> 2AlPO4 + 9NaNO3 ``` - This reaction involves the double displacement reaction between sodium phosphate and aluminum nitrate, resulting in the formation of aluminum phosphate and sodium nitrate [[3]].

4. Aluminum Phosphate (AlPO4) to Aluminum Oxide (Al2O3): - Aluminum phosphate can be heated to produce aluminum oxide. - The balanced chemical equation for this reaction is: ``` 2AlPO4 -> Al2O3 + P2O5 ``` - This reaction occurs when aluminum phosphate is subjected to high temperatures, leading to the formation of aluminum oxide and phosphorus pentoxide [[4]].

By following these chemical reactions, we can trace the transformation from sodium to aluminum oxide through a series of chemical reactions.

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