the potential energy of the molecules changes during a reaction.
An exergonic reaction is a catabolic reaction where large molecules are split into smaller molecules in processes such as hydrolysis.
An exchange reaction is defined as a chemical reaction in which two different molecules or pairs of molecules exchange places. So yes, a chemical exchange reaction will result in different molecules trading positions.
A decomposition reaction does not involve molecules trading positions. When two different molecules or pairs of molecules change position with one another, the chemical reaction is known as an exchange reaction.
Decomposition is its own category of chemical reaction. A reaction in which different molecules trade positions is known as an exchange reaction, as pairs of molecules essentially exchange places with one another.
There are six basic reaction types. When two molecules rearrange themselves to form two different molecules, it is considered a double displacement reaction.
Rusting is a reaction which combines molecules to form other molecules : metal +oxygen=rust
The general term is "condensation reaction." "Dehydration reaction" is also appropriate.
The potential energy of the molecules change during a reaction.
Coupled reaction
Rusting is a reaction which combines molecules to form other molecules : metal +oxygen=rust
cellular respiration, water breaks it down