Evidence of Chemical Reaction

Signs of Chemical Change

Chemical change

Any change that results in the formation of new chemical substances. At the molecular level, chemical change involves making or breaking of bonds between atoms and chemical properties of reactants are changed. We cannot easily see chemical properties, but we can tell when they are being altered in a chemical reaction by looking out for certain signs.

Chemical vs Physical

A chemical change is different from a physical change because it cannot be easily undone. During a physical change, physical properties that we can easily observe are altered but can be easily reversed. The identity of the substance remains the same, it only appears different.
Beautiful Chemical Reactions

Created by Chelsea Archer, 11/10/2015