Chemical and Physical Properties and Changes

Physical Properties Observed with the senses Can be determined without destroying the object Examples: Color, shape, mass, length, density, specific heat, and odor

Chemical Properties A characteristic of a substance that can only be observed by changing it into a different substance. Examples of chemical properties include: The ability to burn Ability to tarnish Ability to rust Ability to decompose Ability to react with other chemicals Ability to do acid/base reactions

Chemical Change Precipitate Energy change (light/heat) Color change A new substance is formed Please Excuse Coughs Burps Sneezes Precipitate Energy change (light/heat) Color change Bubbles or fizzing Smell Change

Physical Change The original substance still exists, it has only changed form Exception is when a substance dissolves