Chemical transformation (Decomposition)

In summary, chemical decomposition refers to the process in which a compound breaks down into simpler substances, driven by factors such as heat, light, or chemical reactions. An example of this is when hydrogen peroxide breaks down into water and oxygen, influenced by catalysts or light exposure. There are different types of chemical decomposition, including thermal, electrolytic, and photochemical, each with its own triggers. In nature, chemical decomposition plays a crucial role in the biogeochemical cycle, breaking down organic matter and recycling nutrients back into the ecosystem. In industries, it is used in the production of various products such as fertilizers, plastics, and explosives, as well as in wastewater treatment and energy production through the decomposition of hydrogen gas.
  • #1
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Hi, I was wondering when you need to write the decomposition of a substance, how do you know if the number is going to be a coefficient or subscript ?

Example:

2H2O ===>2H2 + 02 would be the answer

But why not

2H2O ==> 2H2 + 2O

Knowing that we have 2 moles of O in the beginning...

So ?

Thank you!
 
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  • #2
Although 2H2O ==> 2H2 + 2O does not violate Lavoisier's law, oxigen is a diatomic molecule and therefore the substance 'O' that appears in that equation doesn't truly exist.
 

What is chemical decomposition?

Chemical decomposition, also known as chemical breakdown or chemical decomposition reaction, is a process in which a compound breaks down into simpler substances. This process can be caused by various factors such as heat, light, or chemical reactions.

What is an example of chemical decomposition?

One example of chemical decomposition is when hydrogen peroxide (H2O2) breaks down into water (H2O) and oxygen (O2). This reaction is influenced by the presence of catalysts such as manganese dioxide (MnO2) or by exposure to light.

What are the types of chemical decomposition?

There are several types of chemical decomposition, including thermal decomposition, electrolytic decomposition, and photochemical decomposition. Thermal decomposition occurs when a compound is heated, electrolytic decomposition happens when an electric current is passed through a compound, and photochemical decomposition is triggered by exposure to light.

What is the importance of chemical decomposition in nature?

Chemical decomposition plays a crucial role in the biogeochemical cycle, where it breaks down organic matter into simpler substances that can be used as nutrients by living organisms. It also helps in the breakdown of dead plants and animals, making room for new growth and recycling nutrients back into the ecosystem.

How is chemical decomposition used in industries?

Chemical decomposition is used in various industries, such as the production of fertilizers, plastics, and explosives. It is also used in the production of pharmaceuticals and in wastewater treatment processes. Additionally, chemical decomposition reactions are used in the production of hydrogen gas, which is an important source of energy.

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