for wild plum to become established, and the nutrient enrichment increased fruit production. The branches of wild plum were often pruned or cut back to increase production. Cultivars, Improved and Selected Materials (and area of origin) âBlackhawkâ, âHawkeyeâ, and âDe Sotoâ cultivars are descendents of the wild species (Kindscher 1987).
Determination of chemical properties results in the change of the identity of the substance. Some properties, such as solubility, melting point, boiling point, and density are independent of the amount of. substance being examined. These properties are known as intensive properties and are used to identify a. substance.
Physical Properties of a Pure Substance, Water. The chemical and physical properties of a substance characterize it as a unique substance, and. the determination of these properties can often allow one to determine the identity of an. unknown substance. Physical properties such as color, density, freezing point, normal boiling. point and refractive index are those properties which can be determined without altering the. chemical properties of the substance. That is, after the property has been determined, the. material can be recovered in its original state by physical methods. The determination of. chemical properties usually involves a chemical process, which changes the properties of the. material under study by transforming it into a new substance(s).