Write the reaction equation: Na – Na20 – NaOH – Na3PO4 – Na2SO4 – Na2CO3 – CO2 – H2CO3

| May 16, 2021 | education

1) 4Na + O2 → 2Na2O (sodium oxide; compound reaction).

2) Na2O + H2O → 2NaOH (sodium hydroxide; compound reaction).

3) 3NaOH + H3PO4 → Na3PO4 + 3H2O (sodium phosphate; exchange reaction, the reaction proceeds, since a weak electrolyte is formed in the form of water).

4) 2Na3PO4 + 3MgSO4 → 3Na2SO4 + Mg3 (PO4) 2 (sodium sulfate, magnesium phosphate; exchange reaction, the reaction proceeds, since a precipitate is formed in the form of magnesium phosphate).

5) It is impossible to obtain sodium carbonate from sodium sulfate in one stage, therefore, we write down the intermediate reaction:

Na2SO4 + Ba (OH) 2 → 2NaOH + BaSO4 (sodium hydroxide; barium sulfate).

2NaOH + CO2 → Na2CO3 + H2O (sodium carbonate; exchange reaction, the reaction proceeds, since a weak electrolyte is formed in the form of water).

6) Na2CO3 + 2HCl → 2NaCl + CO2 + H2O (sodium chloride, carbon dioxide; exchange reaction, the reaction proceeds, as carbon dioxide is formed).

7) CO2 + H2O → H2CO3 (carbonic acid, reversible reaction).



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