Decomposition reaction - Page 16

Reaction in which a compound breaks down into two or more simpler substances. - Updated 2023

Definition

Many decomposition reactions involve heat , light, or electricity to input energy.

Binary compounds are compounds which consist of only two elements. The simplest sort of reaction to decomposition is when a binary compound breaks down into its elements. Mercury (II) oxide, a red solid, decomposes to form mercury and oxygen gas when heated.

Also, a reaction is regarded as a decomposition reaction even if one or more of the products are still a compound. A metal carbonate breaks down to form a metal oxide and carbon dioxide gas. Calcium carbonate for example decomposes into calcium oxide and carbon dioxide.

Thông tin thêm về phương trình hóa học

tạo thành H2O (nước) ,trong điều kiện chất xúc tác MnO2

Phương trình để tạo ra chất H2O2 (oxi già) (hydrogen peroxide)

H2SO4 + BaO2 → H2O2 + BaSO4 10H2O + 5(NH4)2S2O8 → 5H2O2 + 10NH4HSO4 Li2O2.H2O2.3H2O → 3H2O + H2O2 + Li2O2

Phương trình để tạo ra chất H2O (nước) (water)

H2SO4 + Na2SO3 → H2O + Na2SO4 + SO2 NaOH + C6H5Br → C6H5ONa + H2O + NaBr 10FeO + 18H2SO4 + 2KMnO4 → 5Fe2(SO4)3 + 18H2O + 2MnSO4 + K2SO4

Phương trình để tạo ra chất O2 (oxi) (oxygen)

2KNO3 → 2KNO2 + O2 2H2O → 2H2 + O2 2AgNO3 → 2Ag + 2NO2 + O2
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