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.
Packaging, labeling, and warranties play numerous roles in the marketing of a product. The packaging component of a product refers to any container in which it is offered for sale and on which label information is conveyed. Manufacturers, retailers, and consumers acknowledge that packaging and labeling provide communication, functional, and perceptual benefits.