Tetanus vaccine can help prevent tetanus disease, commonly known as lockjaw.. Tetanus is a serious disease that causes painful tightening of the muscles, usually all over the body. It can lead to locking of the jaw so the person cannot open his mouth or swallow. Tetanus leads to death in about one in ten cases.
The most abundant dissolved salt in ocean water is sodium chloride. It is a colorless crystalline compound with the chemical formula of NaCl.
Six Most Abundant Elements Dissolved in Ocean Water. Sodium chloride is the prevalent ionic compound found in seawater, accounting for about 85 percent of the dissolved salt. Sodium chloride is better known as common table salt. The salty taste of ocean water is due to the presence of sodium chloride in the water. When measuring the concentration of salt ions in seawater, the ratio of the six abundant ions remains constant. In other words, if you dried up all the water in the ocean, each remaining pile of salt, regardless its location in the world, would contain about 55.03 percent chloride, 30.59 percent sodium.