1 Dorsal fins are found on the back of the fish. 2  There may be up to three of them. 3  The fish uses this fin for balance in the water and sudden movements. 4  Caudal fins are also known as tail fins.5  This is what we refer to as the fish's tail. 6  Anal fins are on the ventral (bottom) surface of the fish, behind the anus. Dorsal fins are found on the back of the fish. 2  There may be up to three of them. 3  The fish uses this fin for balance in the water and sudden movements. 4  Caudal fins are also known as tail fins.
The oxidation number for phosphorus is +3: four covalent bonds with oxygen atoms yield +4 and the central charge yields -1. The oxidation numbers of oxygen and hydrogen are -2â¦ and +1 respectively. The oxidation number of the overall ion is -1.
Magnesium forms cations with a charge of +2, and oxygen in oxyacids is assigned a formal charge or oxidation state of -2. There are four oxygen atoms in each sulfate ion, so t â¦ hat the total charge from oxygen is -8.This means that the oxidation number of sulfur must be +6, so that the total charges will sum to zero, as required for a compound. 3 people found this useful.Rnp 279.here are four oxygen atoms in each sulfate ion, so t â¦ hat the total charge from oxygen is -8. This means that the oxidation number of sulfur must be +6, so that the total charges will sum to zero, as required for a compound. 3 people found this useful. Rnp 279.