The subscript 2 means that two atoms of the element hydrogen have joined together to form a molecule. A subscript is only used when more than one atom is being represented. The graphic below illustrates the formula for water using symbols. Some more common molecules and their chemical formula.
In most cases, a bacteria called Staphylococcus aureus, a type of staph bacteria, causes osteomyelitis. Certain chronic conditions like diabetes may increase your risk for osteomyelitis.n most cases, a bacteria called Staphylococcus aureus, a type of staph bacteria, causes osteomyelitis. Certain chronic conditions like diabetes may increase your risk for osteomyelitis.
Causes. 1  Osteomyelitis may also result from an infection in an adjacent soft tissue, the infection spreads to the bone after several days or weeks. Such an infection may start in an area damaged by an injury, radiation therapy, or cancer, or in a skin ulcer caused by poor circulation or diabetes.