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- Decomposition reactions are initiated by the addition of energy. A decomposition reaction is a chemical reaction in which some chemical bonds in a compound are broken and simpler substances are formed. The breaking of chemical bonds requires the addition of energy, usually in the form of heat.
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Chemical decomposition, or chemical breakdown, is the process or effect of simplifying a single chemical entity (normal molecule, reaction intermediate, etc.) into two or more fragments. Chemical decomposition is usually regarded and defined as the exact opposite of chemical synthesis .
A decomposition reaction is a reaction in which a compound breaks down into two or more simpler substances. The general form of a decomposition reaction is: AB → A + B AB → A + B. Most decomposition reactions require an input of energy in the form of heat, light, or electricity.
Jan 22, 2014 · Decomposition reactions are initiated by the addition of energy. A decomposition reaction is a chemical reaction in which some chemical bonds in a compound are broken and simpler substances are formed. The breaking of chemical bonds requires the addition of energy, usually in the form of heat.
- Decomposition Reaction Examples
- Uses of Decomposition Reactions
- Sources
The electrolysis of water into oxygen and hydrogen gas is an example of a decomposition reaction: 2 H2O → 2 H2 + O2 Another example is the decomposition of potassium chloride into potassium and chlorine gas. 2 KCl(s) → 2 K(s) + Cl2(g)
Decomposition reactions are also called analysis reactions because they are extremely valuable in analytical techniques. Examples include mass spectrometry, gravimetric analysis, and thermogravimetric analysis.
Brown, T.L.; LeMay, H.E.; Burston, B.E. (2017). Chemistry: The Central Science(14th ed.). Pearson. ISBN:9780134414232.
- Anne Marie Helmenstine, Ph.D.
Feb 8, 2021 · Decomposition Reaction Definition. A decomposition reaction is a chemical reaction with a single reactant that forms two or more products. The general form of a decomposition reaction is: AB → A + B. A decomposition reaction forms smaller molecules, often including pure elements.
Metal hydroxides decompose into metal oxides and water upon heating. Here are some examples: Decomposition of sodium hydroxide: 2 NaOH (s) + Δ → Na 2 O (s) + H 2 O (g) Calcium hydroxide: Ca(OH) 2 + Δ → CaO + H 2 O; Iron (III) hydroxide: 2 Fe(OH) 3 + Δ → Fe 2 O 3 + 3 H 2 O; Further Readings
The chemical process of decomposition is complex and involves the breakdown of soft tissue, as the body passes through the sequential stages of decomposition. [2] Autolysis and putrefaction also play major roles in the disintegration of cells and tissues. [3]
