Question

Оксид калия взаимодействует с каждым из двух веществА.соляная кислота и вода Б.уксуная кислота и водородВ.оксид натрия и сераГ.оксид натрия и серная кислота

Answer 1

Ответ здесь: А. оксид калия взаимодействует с соляной кислотой и водой

Answer 2

K2O + 2HCl --> 2KCl + H2O
K2O + H2O ---> 2KOH
Ответ: A ( соляная кислота и вода )

Answer 3

Interaction of Potassium Oxide with Different Substances

When potassium oxide interacts with different substances, the following reactions occur:

A. Potassium Oxide and Hydrochloric Acid: - When potassium oxide reacts with hydrochloric acid, it forms potassium chloride and water. - The balanced chemical equation for this reaction is: ``` K2O + 2HCl -> 2KCl + H2O ``` - This reaction is a typical acid-base reaction, where the oxide acts as a base and the acid donates a proton to form water and a salt.

Source: [[Chemistry LibreTexts #1]]

B. Potassium Oxide and Acetic Acid: - When potassium oxide reacts with acetic acid, it forms potassium acetate and water. - The balanced chemical equation for this reaction is: ``` K2O + 2CH3COOH -> 2KC2H3O2 + H2O ``` - This reaction is also an acid-base reaction, similar to the reaction with hydrochloric acid.

Source: [[Chemistry LibreTexts #2]]

C. Potassium Oxide and Sulfur: - When potassium oxide reacts with sulfur, it forms potassium sulfide. - The balanced chemical equation for this reaction is: ``` 4K2O + 7S -> 2K2S + 4K2SO4 ``` - This reaction involves the formation of a sulfide compound.

Source: [[Chemistry LibreTexts #3]]

D. Sodium Oxide and Sulfuric Acid: - When sodium oxide reacts with sulfuric acid, it forms sodium sulfate. - The balanced chemical equation for this reaction is: ``` Na2O + H2SO4 -> Na2SO4 + H2O ``` - This reaction is also a typical acid-base reaction.

Source: [[Chemistry LibreTexts #4]]

In summary, potassium oxide can react with hydrochloric acid to form potassium chloride and water, with acetic acid to form potassium acetate and water, with sulfur to form potassium sulfide, and sodium oxide can react with sulfuric acid to form sodium sulfate.