The sodium ion may be abbreviated as Na+ or as simply Na. Sodium can occur as a salt in a crystalline solid. Sodium chloride (NaCl), sodium phosphate (Na2HPO4) and sodium bicarbonate (NaHCO3) are commonly occurring salts. These salts can be dissolved in water or in juices of various foods.
A Reference Point is something you use to determine the position of an object, but the reference point has to be something that doesn't move at all. For Example: A Tree. A Reference Point is something you use to determine the position of an object, but the reference point has to be something that doesn't move at all. For Example: A Tree.
triple point. The temperature and pressure at which a substance can exist in equilibrium in the liquid, solid, and gaseous states. The triple point of pure water is at 0.01Â°C (273.16K, 32.01Â°F) and 4.58 mm (611.2Pa) of mercury and is used to calibrate thermometers. Compare critical point. The American HeritageÂ® Science Dictionary