What is the difference between decomposition and dissociation?
Answers
Answer:
The main difference between them is that decomposition reactions are usually irreversible while disassociation reactions are reversible and exist in equilibrium. is an example of a decomposition reaction.
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Answer:
Dissociation is when a compound breaks apart into its component ions, usually as it dissolves in water.
Dissociation is considered a physical change as the substance that dissociates retains its chemical identity, and can be fairly easily restored to its original state.
Examples of dissociation: NaCl --> Na+ + Cl- or HNO3 --> H+ + NO3
Decomposition is when a substance breaks down into to or more different substances. This is considered a chemical change because the substance that breaks down loses its chemical identity it is usually not reversible. Examples: (NH4)2Cr2O7 --> N2 + 4H2O + Cr2O3 or 2H2O2 --> 2H2O + O2