Question

Вибрати реакції розкладу: в) 2KClO4 → 2KCl +3O2 б) 2Fe(OH)3 → Fe2O3 + 3H2O в) 4Р + 5О2 → 2Р2О5 г )N2O5 + H2O → 2HNO3

Answer 1

Ответ:

Б, В

Объяснение:

в) 2KClO4 → 2KCl +3O2 розкладання

б) 2Fe(OH)3 → Fe2O3 + 3H2O  розкладання

в) 4Р + 5О2 → 2Р2О5 приєднання

г )N2O5 + H2O → 2HNO3приєднання

Answer 2

Decomposition Reactions:

a) 2KClO4 → 2KCl + 3O2

The reaction represents the decomposition of potassium chlorate into potassium chloride and oxygen gas. This is a classic example of a thermal decomposition reaction, where a single compound breaks down into two or more simpler substances when heated.

The balanced chemical equation for this reaction is: 2KClO4 → 2KCl + 3O2

The reaction is initiated by heating potassium chlorate, which breaks down into potassium chloride and oxygen gas. This type of reaction is often used in laboratory settings to produce oxygen gas.

b) 2Fe(OH)3 → Fe2O3 + 3H2O

The given reaction represents the decomposition of iron(III) hydroxide into iron(III) oxide and water. This is an example of a decomposition reaction where a compound breaks down into simpler substances.

The balanced chemical equation for this reaction is: 2Fe(OH)3 → Fe2O3 + 3H2O

When heated, iron(III) hydroxide decomposes into iron(III) oxide and water. This type of reaction is commonly observed in various chemical processes and has practical applications in industries.

c) 4P + 5O2 → 2P2O5

The given reaction represents the combination of phosphorus and oxygen to form diphosphorus pentoxide. This is not a decomposition reaction; instead, it is a synthesis or combination reaction where two or more substances combine to form a more complex substance.

The balanced chemical equation for this reaction is: 4P + 5O2 → 2P2O5

In this reaction, phosphorus reacts with oxygen to produce diphosphorus pentoxide. This type of reaction is important in the synthesis of various chemical compounds.

d) N2O5 + H2O → 2HNO3

The given reaction represents the decomposition of dinitrogen pentoxide in the presence of water to form nitric acid. This is an example of a decomposition reaction where a compound breaks down into simpler substances.

The balanced chemical equation for this reaction is: N2O5 + H2O → 2HNO3

In this reaction, dinitrogen pentoxide reacts with water to produce nitric acid. This type of reaction is important in the production of nitric acid in industrial processes.