Each step of a chemical reaction has a different speed. To determine the examples of chemical properties, a substance’s internal qualities must be altered. The properties include: Inflammability: This is how easily a substance will ignite or burn and you cannot tell by just looking. Inflammability information is used to build insurance requirements, fire codes, handling storing and transportation of the highly inflammable materials. Heat of combustion: This property determines the amount of energy released when burning a substance with oxygen. Calorie is a good example of the heat of combustion chemical property. Calorie converts to energy in the body and heat is generated through burning various fuels. Toxicity: This is how much a substance can damage an animal, cell, organ, plant, or other organisms.