Write the reaction equations: Na – Na2O2 – NaOH – Na2SO4 – NaCl – Na

| September 19, 2021 | education

1. Sodium, unlike other alkali metals, forms peroxide with oxygen.

2Na + O2 + Na2O2.

With further interaction of sodium peroxide with metal, sodium oxide is formed.

2 Na + Na2O2 = 2 Na2O.

2. Sodium oxide – basic oxide, corresponds to the base – sodium hydroxide. When interacting with water, sodium oxide forms an alkali – sodium hydroxide.

Na2O + H2O = 2NaOH.

3. Alkalis react with acids to form a salt.

2NaOH + H2SO4 = Na2SO4 + 2H2O.

Barium chloride is a quality reagent for the sulfate anion. As a result of the reaction, a white precipitate is formed – barium sulfate.

Na2SO4 + BaCl2 = BaSO4 + 2NaCl.

Sodium can be obtained from sodium chloride by melt electrolysis. Under the action of a current, chorus and sodium are formed from the salt at the cathode and anode.

2NaCl → 2Na + Cl2.



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