Indications of a Chemical Change. 1  Evolving bubbles or releasing gas. 2  Absorbing or releasing heat. 3  Changing color. 4  Releasing an odor. 5  Inability to reverse the change. 6  Precipitation of a solid from a liquid solution. 7  Formation of a new chemical species. This is the best and surest indicator.
Definition of packaging. 1 : an act or instance of packaging something or someone: such asa : the enclosing of something in a container or covering â¦ damage caused by static charge during packaging, storing, and shipping.
container. n. 1. an object used for or capable of holding, esp for transport or storage, such as a carton, box, etc. 2. (Commerce). a. a large cargo-carrying standard-sized container that can be loaded from one mode of transport to another. b. (as modifier): a container port; a container ship.