Describes shape and location of fish fins, but not how each fin type helps a fish move through water, for example, a tail fin acts as rudder and propeller. Canât describe shape or location of fish fins or how each fin type helps a fish move through water.elvic fins, located on the bottom of the fish in front of the anal fin, help balance the fish, keep it level, and prevent it from rolling from side to side. Fish sometimes rest by sitting on their pelvic fins.
The oxidation number of lithium in lithium nitrate is 1. Formula: LiNO3. Hill system formula: Li1N1O3. CAS registry number: [7790-69-4] Formula weight: 68.946. Class: nitrate. Colour: white. Appearance: crystalline solid.
Lithium in its pure form is a soft, silver white metal, that tarnishes and oxidizes very rapidly in air and water. It is the lightest of all metals, with a density only about half that of water. Like all alkali metals, lithium reacts easily in water and does not occur freely in nature due to its activity. It is always found bound with one or more other elements or compounds. When placed over a flame, this metal gives off a striking crimson color but when it burns strongly, the flame becomes a brilliant white.