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.
Finally, there is the issue of packaging. In terms of job-hunting, packaging refers to how you present yourself and your credentials. In some ways, the strength of your promotion tools may be the most vital piece of your career marketing mix. Promotion â as it relates to job-searching â includes cover letters, resumes, phone calling, and interviewing.