In humans, the calcaneus (/kaelËkeÉªniËÉs/ ; kÃ¦lËkeÉªniËÉs from The latin calcaneus or, calcaneum meaning) heel or heel bone is a bone of the tarsus of the foot which constitutes the. heel
1 Intensive properties, such as density and color, do not depend on the amount of the substance present. 2  Physical properties can be measured without changing a substance's chemical identity.  Chemical properties can be measured only by changing a substance's chemical identity.
Chemical Properties. A chemical property can also be used to distinguish one compound from another. However, this type of property is not as easy to observe as a physical property. A chemical property is a characteristic of a substance that can only be observed during some type of chemical reaction. For example, some compounds have a reaction to acid. When you write your name on a chalkboard using a piece of chalk, you might end up with some chalk dust on your hand, but little else.