Ankylosing spondylitis. Ankylosing spondylitis (AS) is a type of arthritis in which there is long term inflammation of the joints of the spine. Typically the joints where the spine joins the pelvis are also affected. Occasionally other joints such as the shoulders or hips are involved. Eye and bowel problems may also occur.
The allotropes of carbon. Three forms (or 'allotropes') of pure carbon are diamond, graphite and buckminster fullerene (or 'buckyballs'). In all three allotropes the carbon atoms are joined by strong covalent bonds but in such different arrangements that the properties of the allotropes are very different.he allotropes of carbon. Three forms (or 'allotropes') of pure carbon are diamond, graphite and buckminster fullerene (or 'buckyballs'). In all three allotropes the carbon atoms are joined by strong covalent bonds but in such different arrangements that the properties of the allotropes are very different.
Other examples of salts are Epsom salts (MgSO 4) used in bath salts, Ammonium Nitrate (NH 4 NO 3) used as a fertilizer and Baking Soda (NaHCO 3) used in cooking. The chemical formula of salt derives from the formula of constituent acid and base.any living bodies including human body also contains some kinds of acids and bases. A very common acid is the dilute Hydrochloric acid present in our stomach, which involves in the digestion process of food materials in stomach. Urine, blood, and intestinal fluid are alkaline in nature.