This is always the case in a decomposition reaction. Don't forget that!! Figuring out what the products are in decomposition is harder (maybe you'll think it's easier!!) because you will have to recognize several categories of decomposition reactions.
Geology. a small, usually spherical cavity in a rock or mineral, formed by expansion of a gas or vapor before the enclosing body solidified. Origin of vesicle.
Vesicles are small cell organelles that are present in cells. These organelles are small, membrane enclosed sacs which store and transport substances to and from one cell to another and from one part of a cell to another.