Potassium readily loses the single electron in its outer valence, causing it to react very energetically to substances that strongly attract electrons. Potassium is a silver colored metal that tarnishes rapidly when exposed to air because of the oxygen and water vapor.Know More
When exposed to air, potassium turns into potassium oxide, and under certain conditions, burns forming potassium superoxide. It has extremely energetic reactions with water, forming potassium hydroxide and hydrogen gas, which burns with a lilac-colored flame.
Potassium reacts very strongly with halogen gases and acids, forming potassium salts and, in the case of acids, helium gas. It reacts readily with a large majority non-metallic elements, including common elements such as sulfur, phosphorus and nitrogen. These reactions are often extremely energetic or even explosive. In order to be safely stored, potassium must be immersed in a highly inert substance like oil and kept in a suitable container.
Potassium is an important element for most organisms and forms a very wide variety of common compounds. It is also one of the more common trace elements in the Earth's crust. It is crucial in intracellular mechanisms, where it works opposite sodium to control the movement of water across membranes. Several edible plants have high levels of potassium compounds, including bananas and spinach.Learn more about Chemistry
The chemical formulas for two nutritional and medicinal forms of potassium phosphate are KH2PO4 for the monobasic ionic salt (monopotassium phosphate), and K2HPO4 for the dibasic ionic salt (dipotassium phosphate). Potassium phosphate generally refers to the ionic salt compounds containing potassium and the phosphate ion, which also includes tripotassium phosphate (K3HPO4). Phosphorus is found in tissues and cells throughout the human body, and the monobasic and dibasic potassium phosphate salts can be used as dietary supplements to help remedy deficiencies.Full Answer >
Plastics, or polymers, are compounds composed of carbon and hydrogen known as hydrocarbons. According to the American Chemistry Council, polymers can have multidimensional networks of repeating units. Each repeating unit is the “-mer” or basic unit, with “polymer” meaning many repeating units.Full Answer >
Bananas possess marked nutritional value. They supply a large quantity of carbohydrates to the human body and an unripe banana has more starch than sugars. The fiber extracted from the pseudostem and peduncle parts of banana plants constitutes cellulose, hemicellulose, pectin and lignin.Full Answer >
Examples of chemical properties include toxicity, flammability and chemical stability. Measuring these properties involves observing their effects on laboratory animals, testing with a flame or observing changes over time. In each instance, a chemical change occurs.Full Answer >